Natural Resources
Conservation Service
Major Land Resource Area 029X
Major Land Resource Area
Accessed: 05/12/2026
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Next, learn more about the selected ecological site and its characteristic dynamics by browsing the ecological site description and exploring alternative state and transition model formats.
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Viewing 20 of 97
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-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
-
i
Key Characteristics
- Site located south of the Columbia River.
- . Located within Crater Lake National Park Refer to LRU F (or 6) Key (Mazama Cascades).
- Site located within Crater Lake National Park
- Located at timberline; open forest containing whitebark pine typical High Cascades Tree Line (F003XY700OR)
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basins (including playa)
Site is on mountains and foothills.
Site may occur in basins, mountains, or foothills.
Basins east of 1872 Von Schmidt line. The first officially recognized oblique state line between California and Nevada, erred slightly, the boundary was later corrected to the present line, 3/4 mile to the north.
Typic aridic valleys and basin floors including playas.
Xeric-aridic valleys on fan piedmonts.
Typic aridic soils without bedrock.
Typic aridic soil with bedrock.
Ecological site characterized by 5 inches or less precipitation.
Ecological site characterized by 5 inches or more precipitation.
Dominated by fourwing saltbush (found on Torripsamments)
R029XY034NV – SANDY 3-5 P.Z.
R029XY034NV – SANDY 3-5 P.Z.
Ecological site dominated by shadscale saltbush.
The base of the natrargid horizon is within 10 inches of the soil surface.
R029XY032NV – SODIC LOAM 3-5 P.Z.
R029XY032NV – SODIC LOAM 3-5 P.Z.
Soil not as above.
Site is dominated by burrobush (white bursage).
R029XY039NV – COARSE GRAVELLY LOAM 3-5 P.Z.
R029XY039NV – COARSE GRAVELLY LOAM 3-5 P.Z.
Burrobush (white bursage) is not found in the site.
Site is on alluvial flats and lower fan skirts.
R029XY063NV – DRY SODIC TERRACE
R029XY063NV – DRY SODIC TERRACE
Site is on fan skirts and inset fans.
R029XY035NV – LOAMY 3-5 P.Z.
R029XY035NV – LOAMY 3-5 P.Z.
Water table within 45 feet, indicated by presence of greasewood.
Water table deeper than 45 feet, indicated by dominance of shadscale saltbush.
Soil with electrical conductivity (EC) between 16 and 32. On lake plains or basin floors.
R029XY076NV – SODIC FLAT
R029XY076NV – SODIC FLAT
Soil with EC less than 16 and SAR less than 30.
No water table within the profile.
Water table within the profile between 30 and 60 inches.
R029XY004NV – SALINE BOTTOM
R029XY004NV – SALINE BOTTOM
On stabilized sand dunes.
R029XY018NV – SODIC DUNE
R029XY018NV – SODIC DUNE
On fan skirts or alluvial flats.
R029XY024NV – SODIC TERRACE 5-8 P.Z.
R029XY024NV – SODIC TERRACE 5-8 P.Z.
On basin floors.
On piedmont slopes.
In drainageways. Soils are rarely to occasionally flooded (see also R029XY072NV).
R029XY041NV – DRY WASH
R029XY041NV – DRY WASH
Shadscale is dominant, possible Bonneville saltbush (see also R029XY159NV & R029XY117NV).
R029XY059NV – SHALLOW SILTY 5-8 P.Z.
R029XY059NV – SHALLOW SILTY 5-8 P.Z.
Fourwing saltbush (or possible hybrid) is dominant.
R029XY048NV – OUTWASH PLAIN
R029XY048NV – OUTWASH PLAIN
Shadscale is dominant, possible Bonneville saltbush, see also R029XY059NV.
R029XY117NV – SILTY PLAIN
R029XY117NV – SILTY PLAIN
Soils have platy structure and vesicular pores in the A horizon (see also R029XY036NV, R029XY087NV, R029XY093NV, R029XY080NV [petrocalcid], R029XY107NV, & R029XY161NV).
R029XY017NV – LOAMY 5-8 P.Z.
R029XY017NV – LOAMY 5-8 P.Z.
Soil is not as above.
Fourteen to 20 inches of sandy surface.
R029XY012NV – SANDY 5-8 P.Z.
R029XY012NV – SANDY 5-8 P.Z.
Not as above (see also R029XY046NV, R029XY031NV, and R029XY079NV).
R029XY016NV – LOAMY UPLAND 5-8 P.Z.
R029XY016NV – LOAMY UPLAND 5-8 P.Z.
Ecological site is dominated by shadscale saltbush.
Dominated by spiny hopsage and desert thorn.
R029XY021NV – LOAMY HILL 5-8 P.Z.
R029XY021NV – LOAMY HILL 5-8 P.Z.
Purple oniongrass dominated.
R029XY037NV – COBBLY SLOPE 5-8 P.Z.
R029XY037NV – COBBLY SLOPE 5-8 P.Z.
Soil is typically greater than 10 inches deep.
R029XY022NV – LOAMY SLOPE 5-8 P.Z.
R029XY022NV – LOAMY SLOPE 5-8 P.Z.
Soil is typically less than 10 inches deep.
R029XY033NV – LOAMY SLOPE 3-5 P.Z.
R029XY033NV – LOAMY SLOPE 3-5 P.Z.
Xeric-aridic valleys on fan piedmonts with limestone parent material.
Xeric-aridic valleys on piedmonts with volcanic parent material.
Site is on alluvial soil.
Site is on alluvium derived from sedimentary parent material (limestone).
Site is on alluvium derived from limestone with an ochric epipedon (see also R029XY047NV and R029XY099NV).
R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
Site is on alluvium derived from limestone with a mollic epipedon (see also R029XY173NV).
R029XY170NV – SHALLOW CALCAREOUS LOAM 10-12
R029XY170NV – SHALLOW CALCAREOUS LOAM 10-12
Site is on erosional fan remnants. The soil is shallow and from limestone parent material. The soil surface is covered with about 70 percent gravel sized rock fragments.
R029XY173NV – SHALLOW GRAVELLY FAN 12-14 P.Z.
R029XY173NV – SHALLOW GRAVELLY FAN 12-14 P.Z.
Site is on the summit and sideslopes of fan remnants. The soil is shallow to very shallow. The soil surface is covered by 30 to 70 percent rock fragments.
R029XY099NV – STONY CALCAREOUS HILL
R029XY099NV – STONY CALCAREOUS HILL
Site is on eroded sideslopes of fan remnants. The soil is very shallow to a duripan.
R029XY162NV – ERODED SLOPE 8-10 P.Z.
R029XY162NV – ERODED SLOPE 8-10 P.Z.
Site has 35 to 50 percent gravels by volume in the profile. Soil is deep.
F029XY058NV – PIMO-JUOS WSG 0R0507 10 to 15
F029XY058NV – PIMO-JUOS WSG 0R0507 10 to 15
Site is on alluvial soil.
Site is on bedrock controlled soils.
Site is on alluvium derived from volcanic parent material.
Dominated by black sagebrush (possible more effervescence) (see R029XY008NV).
R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
Ecological site is dominated by Wyoming sagebrush (possible less effervescence).
Dominated by pygmy sagebrush (on eroded fan remnants).
R029XY092NV – BARREN FAN 8-10 P.Z.
R029XY092NV – BARREN FAN 8-10 P.Z.
Dominated by mountain big sagebrush and the soil is pachic.
R029XY061NV – FAN COLLAR 12-16 P.Z.
R029XY061NV – FAN COLLAR 12-16 P.Z.
On inset fans and drainageways (terrace) (see also R029XY114NV and R029XY158NV).
R029XY049NV – SANDY LOAM 8-12 P.Z.
R029XY049NV – SANDY LOAM 8-12 P.Z.
On fan remnants (see also R029XY167NV).
R029XY006NV – LOAMY 8-10 P.Z.
R029XY006NV – LOAMY 8-10 P.Z.
Site is on residuum derived from volcanic parent material.
Ecological site is dominated by black sagebrush (possible more effervescence).
Ecological site dominated by Wyoming big sagebrush (possible less effervescence).
Dominated by black sagebrush with Thurber's needlegrass (above 10 inches precipitation).
R029XY104NV – SHALLOW CLAY LOAM 10-12 P.Z.
R029XY104NV – SHALLOW CLAY LOAM 10-12 P.Z.
Ecological site dominated by black sagebrush without Thurber's needlegrass (below 10 inches precipitation).
South aspect dominated by black sagebrush without Thurber's needlegrass (below 10 inches of precipitation).
R029XY045NV – STONY CALCAREOUS SLOPE 8-12 P.Z.
R029XY045NV – STONY CALCAREOUS SLOPE 8-12 P.Z.
On low mountains and hills, below 10 inches of precipitation.
R029XY010NV – LOAMY SLOPE 8-10 P.Z.
R029XY010NV – LOAMY SLOPE 8-10 P.Z.
On low mountains and hills, above 10 inches of precipitation.
R029XY057NV – LOAMY ASH INFLUENCED SLOPE 12-14 P.Z.
R029XY057NV – LOAMY ASH INFLUENCED SLOPE 12-14 P.Z.
Site is on mountain backslopes and high mountains.
Site is on foothills and low mountains.
Typic xeric above tree line.
Aridic-xeric mid-slope woodland and brushland.
Soils are moderately deep to very deep, over 40 inches.
Soil not as above, less than 40 inches.
Dominant plant is mountain big sagebrush.
Dominant plant is little (low) sagebrush.
R029XY052NV – CLAYPAN 16+ P.Z.
R029XY052NV – CLAYPAN 16+ P.Z.
The soil is pachic.
R029XY051NV – LOAMY SLOPE 16+ P.Z.
R029XY051NV – LOAMY SLOPE 16+ P.Z.
Ecological site is above 8,000 feet.
Ecological site is below 8,000 feet.
Site is on ridges (convex/convex or convex/linear).
R029XY053NV – MOUNTAIN RIDGE 16+ P.Z.
R029XY053NV – MOUNTAIN RIDGE 16+ P.Z.
Site is on sideslopes (linear/linear, convex/linear).
R029XY052NV – CLAYPAN 16+ P.Z.
R029XY052NV – CLAYPAN 16+ P.Z.
Soil textures are ashy (with a ashy modifier, over 30 percent volcanic glass).
R029XY055NV – CLAYPAN 12-16 P.Z.
R029XY055NV – CLAYPAN 12-16 P.Z.
Soil greater than 60 inches (very deep).
Soil less than 60 inches deep (deep, moderately-deep, or shallow).
Site is associated with a flowing stream.
R029XY026NV – STREAMBANK 14+ P.Z.
R029XY026NV – STREAMBANK 14+ P.Z.
Associated with a wash or drainageway.
R029XY009NV – UPLAND WASH
R029XY009NV – UPLAND WASH
On a fan remnant.
R029XY030NV – LOAMY 12-14 P.Z.
R029XY030NV – LOAMY 12-14 P.Z.
Soil is 20 to 40 inches deep (moderately deep).
Soil is shallow less than 20 inches deep (shallow).
Dominated by curl-leaf mountain mahogany (see also R029XY043NV).
R029XY027NV – MAHOGANY THICKET
R029XY027NV – MAHOGANY THICKET
Understory dominated by mountain big sagebrush.
F029XY066NV – PIMO-JUOS WSG 1R0501 12 to 16
F029XY066NV – PIMO-JUOS WSG 1R0501 12 to 16
Granitic parent material.
F029XY068NV – PIMO-JUOS/ARAR8
F029XY068NV – PIMO-JUOS/ARAR8
Parent material not as above.
Understory story vegetation is dominated by black sagebrush.
F029XY069NV – PIMO-JUOS WSG 0R0504 12 to 16
F029XY069NV – PIMO-JUOS WSG 0R0504 12 to 16
Understory not as above.
Understory dominated by Wyoming big sagebrush (below 7,200 feet).
F029XY065NV – PIMO-JUOS/ARTRW8
F029XY065NV – PIMO-JUOS/ARTRW8
Site is above 7,200 feet and the understory is dominated by mountain big sagebrush.
F029XY095NV – PIMO-JUOS WSG 0R0501 12 to 16
F029XY095NV – PIMO-JUOS WSG 0R0501 12 to 16
MLRA 29 in Utah - low mountains.
Xeric-aridic low mountains and hills.
Soil moderately deep to deep.
Soil shallow, less than 20 inches to a restrictive layer.
Site found on alluvial fans or fan remnants.
Site found on mountain slopes.
Surface texture is fine sandy loam.
R029XY165NV – ERODED NORTH SLOPE 12-14 P.Z.
R029XY165NV – ERODED NORTH SLOPE 12-14 P.Z.
Surface texture is loam.
R029XY330UT – Upland Stony Loam (Shrub Liveoak)
R029XY330UT – Upland Stony Loam (Shrub Liveoak)
Elevation is less than 6,500 feet.
R029XY310UT – Upland Loam (Utah Serviceberry)
R029XY310UT – Upland Loam (Utah Serviceberry)
Elevation is over 6,000 feet.
Soil surface texture is loamy coarse sand.
F029XY001CA – Shallow Sandy Slope
F029XY001CA – Shallow Sandy Slope
Surface texture is sandy loam or loam.
Site is typically found at higher elevations dominated by Ponderosa pine (Pinus ponderosa). Volcanic parent material. Soil depth greater than 40 inches.
F029XY086NV – Rocky Loamy Slope 16+
F029XY086NV – Rocky Loamy Slope 16+
Site is typically found at slightly lower elevations and is dominated by pinyon and juniper. Volcanic parent material. Soil depth between 14 and 40 inches.
F029XY078NV – Shallow Ashy Loam 12-16" P.Z. 12 to 16
F029XY078NV – Shallow Ashy Loam 12-16" P.Z. 12 to 16
Dominated by pinyon and juniper. Limestone parent material. Soil depth is between 10 and 20 inches.
F029XY067NV – PIMO-JUOS WSG 0R0501 12 to 16
F029XY067NV – PIMO-JUOS WSG 0R0501 12 to 16
Pinyon and juniper dominated. Volcanic parent material. Slopes are between 50 and 75 percent.
F029XY083NV – PIMO-JUOS WSG 0X0504 12 to 16
F029XY083NV – PIMO-JUOS WSG 0X0504 12 to 16
Pinyon and juniper dominated. Volcanic parent material. Soil depth is between 14 and 20 inches.
F029XY084NV – PIMO-JUOS WSG 0R0501 12 to 16
F029XY084NV – PIMO-JUOS WSG 0R0501 12 to 16
Site is found on alluvial fans, fan remnants, hillslopes, or lava flows.
Site is found on mountains and mountain slopes.
Site is found at elevations less than 5,500 feet.
R029XY220UT – Semidesert Shallow Hardpan (Blackbrush)
R029XY220UT – Semidesert Shallow Hardpan (Blackbrush)
Site is found at elevations greater than 6,200 feet.
F029XY070NV – Shallow Loam 10-14 P.Z.
F029XY070NV – Shallow Loam 10-14 P.Z.
Mean annual precipitation is 17 inches or more.
F029XY096NV – PIMO-ABCOC WSG 3R0607 16 to 18
F029XY096NV – PIMO-ABCOC WSG 3R0607 16 to 18
Mean annual precipitation is less than 17 inches.
Rocks on the soil surface are typically cobble sized.
Rocks on the soil surface are gravel or boulder sized.
Soil surface fragments are less than 10 percent cover.
F029XY071NV – Shallow Rocky Loam 10-12" P.Z
F029XY071NV – Shallow Rocky Loam 10-12" P.Z
Soil surface fragments are over 25 percent cover.
R029XY320UT – Upland Shallow Loam (Singleleaf Pinyon-Utah Juniper)
R029XY320UT – Upland Shallow Loam (Singleleaf Pinyon-Utah Juniper)
Soil surface texture is loamy coarse sand.
F029XY001CA – Shallow Sandy Slope
F029XY001CA – Shallow Sandy Slope
Soil surface texture is loam to sandy loam.
Site is found on north and east exposures and dominated by Sonoran scrub oak (Quercus turbinella).
R029XY172NV – NORTH SLOPE 12-14
R029XY172NV – NORTH SLOPE 12-14
Site is found on all exposures and is dominated by sagebrush.
Dominant vegetation is low sagebrush (Artemisia arbuscula).
R029XY163NV – COBBLY CLAYPAN 12-14 P.Z.
R029XY163NV – COBBLY CLAYPAN 12-14 P.Z.
Dominant vegetation is mountain big sagebrush (Artemisia tridentata var. vaseyana).
R029XY164NV – GRAVELLY CLAY SLOPE 12-14 P.Z.
R029XY164NV – GRAVELLY CLAY SLOPE 12-14 P.Z.
Dominated by little leaf mountain mahogany and soil 15 centimeters or less.
R029XY040NV – LIMESTONE HILL
R029XY040NV – LIMESTONE HILL
Ecological site is not as above.
Dominated by blackbrush (see also R029XY019NV and R029XY077NV).
R029XY013NV – SHALLOW GRAVELLY LOAM 5-8 P.Z.
R029XY013NV – SHALLOW GRAVELLY LOAM 5-8 P.Z.
Ecological site is not as above.
Ecological site is dominated by black sagebrush (possible more effervescence).
Ecological site dominated by big sagebrush (possible less effervescence).
Dominated by black sagebrush with 2 to 10 percent canopy cover old juniper (see also R029XY081NV).
R029XY015NV – SHALLOW CALCAREOUS HILL 8-10 P.Z.
R029XY015NV – SHALLOW CALCAREOUS HILL 8-10 P.Z.
Ecological site is dominated by black sagebrush with less than 2 percent old juniper.
Not as above (see also R029XY014NV and R029XY168NV)
R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
Soils shallow and well drained, dominated by black sagebrush and small amounts of juniper and pinyon.
R029XY160NV – LIMESTONE SLOPE 8-10 P.Z.
R029XY160NV – LIMESTONE SLOPE 8-10 P.Z.
Ecological site associated with rock scree.
Ecological site not as above.
Soil with a mollic epipedon. Thurber's needlegrass is the dominant grass.
R029XY106NV – GRAVELLY CLAY SLOPE 10-12 P.Z.
R029XY106NV – GRAVELLY CLAY SLOPE 10-12 P.Z.
Soil with an ochric epipedon. Desert needlegrass is the dominant grass.
R029XY169NV – SCREE SLOPE 8-10
R029XY169NV – SCREE SLOPE 8-10
Dominated by Wyoming big sagebrush with desert needlegrass.
R029XY073NV – BOULDERY SLOPE 8-12 P.Z.
R029XY073NV – BOULDERY SLOPE 8-12 P.Z.
Dominated by Wyoming big sagebrush with needleandthread-Indian ricegrass (see also R029XY010NV)
R029XY075NV – LOAMY SLOPE 10-12 P.Z.
R029XY075NV – LOAMY SLOPE 10-12 P.Z.
Sites are associated with seasonally wet soils.
Site is not associated with seasonally wet soils.
Water table is less than 20 inches deep.
Water table is deeper than 20 inches.
Surface texture is peat.
R029XY044NV – PEATY WETLAND
R029XY044NV – PEATY WETLAND
Surface texture is silt loam.
R029XY001NV – WET MEADOW 8-12 P.Z.
R029XY001NV – WET MEADOW 8-12 P.Z.
Site is influenced by salts and the pH is greater than 7.6.
R029XY002NV – SALINE MEADOW
R029XY002NV – SALINE MEADOW
Site is not influenced by salts and the pH is less 7.6.
R029XY025NV – STREAMBANK 10-14 P.Z.
R029XY025NV – STREAMBANK 10-14 P.Z.
Site is found on slopes greater than 30 percent. Site is on granite parent material. Dominated by mountain big sagebrush.
R029XY186CA – Sandy Slope 10-12" p.z.
R029XY186CA – Sandy Slope 10-12" p.z.
Site is found on slopes less than 30 percent.
Over 30 percent slopes. Site on rhyolite parent material.
R029XY183CA – Shallow Granitic Slope 7-9" p.z.
R029XY183CA – Shallow Granitic Slope 7-9" p.z.
Site in on over 30 percent slopes on granite or granitoid parent material.
R029XY189CA – South Sandy Slope 9-11" p.z.
R029XY189CA – South Sandy Slope 9-11" p.z.
Site has less than 10 percent gravel cover on the surface.
R029XY020NV – SILTY 5-8 P.Z.
R029XY020NV – SILTY 5-8 P.Z.
Site has more than 10 percent gravel cover on the surface.
Restrictive layer is less than 14 inches deep.
R029XY185CA – Shallow Granitic Hills 7-9" p.z.
R029XY185CA – Shallow Granitic Hills 7-9" p.z.
Restrictive layer is between 20 and 30 inches deep.
R029XY042NV – COARSE SILTY 5-8 P.Z.
R029XY042NV – COARSE SILTY 5-8 P.Z.
Long term average mean annual precipitation
- No filter
- 0 – 10cm (0 – 4in)
- 10 – 15cm (4 – 6in)
- 15 – 20cm (6 – 8in)
- 20 – 25cm (8 – 10in)
- 25 – 30cm (10 – 12in)
- 30 – 35cm (12 – 14in)
- 35 – 40cm (14 – 16in)
- 40 – 50cm (16 – 20in)
—
cm
Long term average frost free days
- No filter
- 0 – 30days
- 30 – 50days
- 50 – 70days
- 70 – 90days
- 90 – 110days
- 110 – 130days
- 130 – 150days
- 150 – 170days
- 170 – 190days
- 190 – 210days
- 210 – 230days
- 230 – 250days
—
days
- No filter
- 600 – 800m (2000 – 2600ft)
- 800 – 1000m (2600 – 3300ft)
- 1000 – 1200m (3300 – 3900ft)
- 1200 – 1400m (3900 – 4600ft)
- 1400 – 1600m (4600 – 5200ft)
- 1600 – 1800m (5200 – 5900ft)
- 1800 – 2000m (5900 – 6600ft)
- 2000 – 2200m (6600 – 7200ft)
- 2200 – 2400m (7200 – 7900ft)
- 2400 – 2600m (7900 – 8500ft)
- 2600 – 2800m (8500 – 9800ft)
- 2800 – 3000m (9800 – 26240ft)
- 3000 – 8000m
—
m
- No filter
- 0 – 3%
- 3 – 5%
- 5 – 10%
- 10 – 15%
- 15 – 20%
- 20 – 25%
- 25 – 30%
- 30 – 35%
- 35 – 40%
- 40 – 45%
- 45 – 50%
- 50 – 60%
- 60 – 70%
- 70 – 80%
—
%
- No filter
- Alluvial fan
- Alluvial flat
- Ballena
- Basin floor
- Bayou
- Beach terrace
- Channel
- Depression
- Drainageway
- Dune
- Fan piedmont
- Fan remnant
- Fan skirt
- Flood plain
- Hill
- Inset fan
- Intermontane basin
- Lake plain
- Lake terrace
- Longshore bar (relict)
- Mesa
- Mountain
- Mountain slope
- Mountainside
- Pediment
- Ridge
- Rock pediment
- Sand sheet
- Seep
- Stream terrace
- No filter
- Andesite
- Basalt
- Dolomite (dolostone)
- Granite
- Granitoid
- Igneous, unspecified
- Limestone and dolomite
- Limestone, unspecified
- Quartzite
- Rhyolite
- Tuff, unspecified
- Tuff, welded
- Volcanic breccia, unspecified
- Volcanic, unspecified
- No filter
- Alluvium
- Colluvium
- Lacustrine deposits
- Organic, unspecified
- Residuum
- Volcanic ash
Soil surface texture
- No filter
- Coarse sand
- Coarse sandy loam
- Fine sand
- Fine sandy loam
- Loam
- Loamy coarse sand
- Loamy sand
- Sand
- Sandy clay loam
- Silty clay loam
- Silt loam
- Sandy loam
- Very fine sandy loam
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Ecological site keys
MLRA 29
I.
basins (including playa)
A.
Basins east of 1872 Von Schmidt line. The first officially recognized oblique state line between California and Nevada, erred slightly, the boundary was later corrected to the present line, 3/4 mile to the north.
1
Typic aridic valleys and basin floors including playas.
i.
Typic aridic soils without bedrock.
a.
Ecological site characterized by 5 inches or less precipitation.
2)
Ecological site dominated by shadscale saltbush.
a)
The base of the natrargid horizon is within 10 inches of the soil surface.
... R029XY032NV – SODIC LOAM 3-5 P.Z.
b)
Soil not as above.
(2)
Burrobush (white bursage) is not found in the site.
b.
Ecological site characterized by 5 inches or more precipitation.
1)
Water table within 45 feet, indicated by presence of greasewood.
a)
Soil with electrical conductivity (EC) between 16 and 32. On lake plains or basin floors.
... R029XY076NV – SODIC FLAT
b)
Soil with EC less than 16 and SAR less than 30.
(1)
No water table within the profile.
2)
Water table deeper than 45 feet, indicated by dominance of shadscale saltbush.
a)
On basin floors.
(1)
Shadscale is dominant, possible Bonneville saltbush (see also R029XY159NV & R029XY117NV).
... R029XY059NV – SHALLOW SILTY 5-8 P.Z.
(3)
Shadscale is dominant, possible Bonneville saltbush, see also R029XY059NV.
... R029XY117NV – SILTY PLAIN
b)
On piedmont slopes.
(1)
Soils have platy structure and vesicular pores in the A horizon (see also R029XY036NV, R029XY087NV, R029XY093NV, R029XY080NV [petrocalcid], R029XY107NV, & R029XY161NV).
... R029XY017NV – LOAMY 5-8 P.Z.
(2)
Soil is not as above.
(b)
Not as above (see also R029XY046NV, R029XY031NV, and R029XY079NV).
... R029XY016NV – LOAMY UPLAND 5-8 P.Z.
c)
In drainageways. Soils are rarely to occasionally flooded (see also R029XY072NV).
... R029XY041NV – DRY WASH
ii.
Typic aridic soil with bedrock.
a.
Ecological site is dominated by shadscale saltbush.
2
Xeric-aridic valleys on fan piedmonts.
i.
Xeric-aridic valleys on fan piedmonts with limestone parent material.
a.
Site is on alluvial soil.
1)
Site is on alluvium derived from sedimentary parent material (limestone).
a)
Site is on alluvium derived from limestone with an ochric epipedon (see also R029XY047NV and R029XY099NV).
... R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
b)
Site is on alluvium derived from limestone with a mollic epipedon (see also R029XY173NV).
... R029XY170NV – SHALLOW CALCAREOUS LOAM 10-12
c)
Site is on erosional fan remnants. The soil is shallow and from limestone parent material. The soil surface is covered with about 70 percent gravel sized rock fragments.
... R029XY173NV – SHALLOW GRAVELLY FAN 12-14 P.Z.
d)
Site is on the summit and sideslopes of fan remnants. The soil is shallow to very shallow. The soil surface is covered by 30 to 70 percent rock fragments.
... R029XY099NV – STONY CALCAREOUS HILL
e)
Site is on eroded sideslopes of fan remnants. The soil is very shallow to a duripan.
... R029XY162NV – ERODED SLOPE 8-10 P.Z.
f)
Site has 35 to 50 percent gravels by volume in the profile. Soil is deep.
... F029XY058NV – PIMO-JUOS WSG 0R0507 10 to 15
ii.
Xeric-aridic valleys on piedmonts with volcanic parent material.
a.
Site is on alluvial soil.
1)
Site is on alluvium derived from volcanic parent material.
a)
Dominated by black sagebrush (possible more effervescence) (see R029XY008NV).
... R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
b)
Ecological site is dominated by Wyoming sagebrush (possible less effervescence).
(1)
On inset fans and drainageways (terrace) (see also R029XY114NV and R029XY158NV).
... R029XY049NV – SANDY LOAM 8-12 P.Z.
e)
Dominated by mountain big sagebrush and the soil is pachic.
... R029XY061NV – FAN COLLAR 12-16 P.Z.
b.
Site is on bedrock controlled soils.
2)
Site is on residuum derived from volcanic parent material.
a)
Ecological site is dominated by black sagebrush (possible more effervescence).
(1)
Dominated by black sagebrush with Thurber's needlegrass (above 10 inches precipitation).
... R029XY104NV – SHALLOW CLAY LOAM 10-12 P.Z.
(2)
Ecological site dominated by black sagebrush without Thurber's needlegrass (below 10 inches precipitation).
(a)
South aspect dominated by black sagebrush without Thurber's needlegrass (below 10 inches of precipitation).
... R029XY045NV – STONY CALCAREOUS SLOPE 8-12 P.Z.
b)
Ecological site dominated by Wyoming big sagebrush (possible less effervescence).
(1)
On low mountains and hills, below 10 inches of precipitation.
... R029XY010NV – LOAMY SLOPE 8-10 P.Z.
(2)
On low mountains and hills, above 10 inches of precipitation.
... R029XY057NV – LOAMY ASH INFLUENCED SLOPE 12-14 P.Z.
II.
Site is on mountains and foothills.
A.
Site is on mountain backslopes and high mountains.
1
Typic xeric above tree line.
i.
Soils are moderately deep to very deep, over 40 inches.
a.
Dominant plant is mountain big sagebrush.
ii.
Soil not as above, less than 40 inches.
a.
Ecological site is above 8,000 feet.
b.
Ecological site is below 8,000 feet.
1)
Soil textures are ashy (with a ashy modifier, over 30 percent volcanic glass).
... R029XY055NV – CLAYPAN 12-16 P.Z.
2
Aridic-xeric mid-slope woodland and brushland.
i.
Soil greater than 60 inches (very deep).
ii.
Soil less than 60 inches deep (deep, moderately-deep, or shallow).
a.
Soil is 20 to 40 inches deep (moderately deep).
1)
Dominated by curl-leaf mountain mahogany (see also R029XY043NV).
... R029XY027NV – MAHOGANY THICKET
b.
Soil is shallow less than 20 inches deep (shallow).
2)
Parent material not as above.
a)
Understory story vegetation is dominated by black sagebrush.
... F029XY069NV – PIMO-JUOS WSG 0R0504 12 to 16
b)
Understory not as above.
(1)
Understory dominated by Wyoming big sagebrush (below 7,200 feet).
... F029XY065NV – PIMO-JUOS/ARTRW8
(2)
Site is above 7,200 feet and the understory is dominated by mountain big sagebrush.
... F029XY095NV – PIMO-JUOS WSG 0R0501 12 to 16
B.
Site is on foothills and low mountains.
1
MLRA 29 in Utah - low mountains.
i.
Soil moderately deep to deep.
a.
Site found on alluvial fans or fan remnants.
b.
Site found on mountain slopes.
2)
Elevation is over 6,000 feet.
b)
Surface texture is sandy loam or loam.
(1)
Site is typically found at higher elevations dominated by Ponderosa pine (Pinus ponderosa). Volcanic parent material. Soil depth greater than 40 inches.
... F029XY086NV – Rocky Loamy Slope 16+
(2)
Site is typically found at slightly lower elevations and is dominated by pinyon and juniper. Volcanic parent material. Soil depth between 14 and 40 inches.
... F029XY078NV – Shallow Ashy Loam 12-16" P.Z. 12 to 16
(3)
Dominated by pinyon and juniper. Limestone parent material. Soil depth is between 10 and 20 inches.
... F029XY067NV – PIMO-JUOS WSG 0R0501 12 to 16
(4)
Pinyon and juniper dominated. Volcanic parent material. Slopes are between 50 and 75 percent.
... F029XY083NV – PIMO-JUOS WSG 0X0504 12 to 16
(5)
Pinyon and juniper dominated. Volcanic parent material. Soil depth is between 14 and 20 inches.
... F029XY084NV – PIMO-JUOS WSG 0R0501 12 to 16
ii.
Soil shallow, less than 20 inches to a restrictive layer.
a.
Site is found on alluvial fans, fan remnants, hillslopes, or lava flows.
1)
Site is found at elevations less than 5,500 feet.
... R029XY220UT – Semidesert Shallow Hardpan (Blackbrush)
b.
Site is found on mountains and mountain slopes.
2)
Mean annual precipitation is less than 17 inches.
a)
Rocks on the soil surface are typically cobble sized.
(1)
Soil surface fragments are less than 10 percent cover.
... F029XY071NV – Shallow Rocky Loam 10-12" P.Z
(2)
Soil surface fragments are over 25 percent cover.
... R029XY320UT – Upland Shallow Loam (Singleleaf Pinyon-Utah Juniper)
b)
Rocks on the soil surface are gravel or boulder sized.
(2)
Soil surface texture is loam to sandy loam.
(a)
Site is found on north and east exposures and dominated by Sonoran scrub oak (Quercus turbinella).
... R029XY172NV – NORTH SLOPE 12-14
(b)
Site is found on all exposures and is dominated by sagebrush.
(1)
Dominant vegetation is low sagebrush (Artemisia arbuscula).
... R029XY163NV – COBBLY CLAYPAN 12-14 P.Z.
(2)
Dominant vegetation is mountain big sagebrush (Artemisia tridentata var. vaseyana).
... R029XY164NV – GRAVELLY CLAY SLOPE 12-14 P.Z.
2
Xeric-aridic low mountains and hills.
i.
Dominated by little leaf mountain mahogany and soil 15 centimeters or less.
... R029XY040NV – LIMESTONE HILL
ii.
Ecological site is not as above.
a.
Dominated by blackbrush (see also R029XY019NV and R029XY077NV).
... R029XY013NV – SHALLOW GRAVELLY LOAM 5-8 P.Z.
b.
Ecological site is not as above.
1)
Ecological site is dominated by black sagebrush (possible more effervescence).
a)
Dominated by black sagebrush with 2 to 10 percent canopy cover old juniper (see also R029XY081NV).
... R029XY015NV – SHALLOW CALCAREOUS HILL 8-10 P.Z.
b)
Ecological site is dominated by black sagebrush with less than 2 percent old juniper.
(2)
Not as above (see also R029XY014NV and R029XY168NV)
... R029XY008NV – SHALLOW CALCAREOUS LOAM 8-12 P.Z.
(3)
Soils shallow and well drained, dominated by black sagebrush and small amounts of juniper and pinyon.
... R029XY160NV – LIMESTONE SLOPE 8-10 P.Z.
2)
Ecological site dominated by big sagebrush (possible less effervescence).
a)
Ecological site associated with rock scree.
(1)
Soil with a mollic epipedon. Thurber's needlegrass is the dominant grass.
... R029XY106NV – GRAVELLY CLAY SLOPE 10-12 P.Z.
(2)
Soil with an ochric epipedon. Desert needlegrass is the dominant grass.
... R029XY169NV – SCREE SLOPE 8-10
b)
Ecological site not as above.
(1)
Dominated by Wyoming big sagebrush with desert needlegrass.
... R029XY073NV – BOULDERY SLOPE 8-12 P.Z.
(2)
Dominated by Wyoming big sagebrush with needleandthread-Indian ricegrass (see also R029XY010NV)
... R029XY075NV – LOAMY SLOPE 10-12 P.Z.
III.
Site may occur in basins, mountains, or foothills.
A.
Sites are associated with seasonally wet soils.
1
Water table is less than 20 inches deep.
2
Water table is deeper than 20 inches.
B.
Site is not associated with seasonally wet soils.
1
Site is found on slopes greater than 30 percent. Site is on granite parent material. Dominated by mountain big sagebrush.
... R029XY186CA – Sandy Slope 10-12" p.z.
2
Site is found on slopes less than 30 percent.
ii.
Site has more than 10 percent gravel cover on the surface.
a.
Restrictive layer is less than 14 inches deep.
... R029XY185CA – Shallow Granitic Hills 7-9" p.z.
3
Over 30 percent slopes. Site on rhyolite parent material.
... R029XY183CA – Shallow Granitic Slope 7-9" p.z.
4
Site in on over 30 percent slopes on granite or granitoid parent material.
... R029XY189CA – South Sandy Slope 9-11" p.z.
The Ecosystem Dynamics Interpretive Tool is an information system framework developed by the USDA-ARS Jornada Experimental Range, USDA Natural Resources Conservation Service, and New Mexico State University.
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