Natural Resources
Conservation Service
Major Land Resource Area 029X
Major Land Resource Area
Accessed: 04/20/2026
Previous
Sections
Next
Next steps
-
1
Select an ecological site group
Select an ecological site group using the list, keys, photos, briefcase, or quick search option located on this page. -
2
Explore the ecological site group description
Next, learn more about the selected ecological site group and its characteristic dynamics by browsing the ecological site group description and exploring alternative state and transition model formats.
Ecological site group list
Tools
Search
Filter by
interactive key
clear all
Sort by
id
name
stage
Viewing 16 of 16
View all
-
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)
Briefcase
Add ecological site groups and Major Land Resource Areas to your briefcase by clicking on the briefcase (
) icon wherever it occurs. Drag and drop items to reorder. Cookies are used to store briefcase items between browsing sessions. Because of this, the number of items that can be added to your briefcase is limited, and briefcase items added on one device and browser cannot be accessed from another device or browser. Users who do not wish to place cookies on their devices should not use the briefcase tool. Briefcase cookies serve no other purpose than described here and are deleted whenever browsing history is cleared.
Ecological site groups
Major Land Resource Areas
Ecological site group photos
Tools
Filter by
interactive key
clear all
Type
Image size
Done
Filters
Interactive key
Additional water
Uplands
Perennial water
029XESG08 – Riparian
029XESG08 – Riparian
Ephemeral water
Sand >50% & Clay <25% for surface and subsurface
029XESG11 – Sandy Bottoms
029XESG11 – Sandy Bottoms
Sand <50% or Clay >25% for surface and subsurface
029XESG01 – Bottoms
029XESG01 – Bottoms
>75% bedrock outcrop
029XESG07 – Outcrops
029XESG07 – Outcrops
<75% bedrock outcrop
Surface SAR >8 or Subsurface EC >8 or Surface EC >4
029XESG09 – Saline Hills
029XESG09 – Saline Hills
Surface SAR <8 and Subsurface EC <8 and Surface EC <4
EC >1.5 surface or >2 subsurface
029XESG10 – Saline Uplands
029XESG10 – Saline Uplands
EC <1.5 surface and <2 subsurface
slope >35% & >40% surface rock
029XESG02 – Breaks
029XESG02 – Breaks
slope <35% or <40% surface rock
Depth <30cm
029XESG14 – Very Shallow
029XESG14 – Very Shallow
Depth: 30-55cm
029XESG13 – Shallow
029XESG13 – Shallow
Depth >55cm
Rock >30% surface or >30% subsurface
029XESG04 – Deep Rocky
029XESG04 – Deep Rocky
Rock <30% surface and <30% subsurface
Clay >30% surface or >35% subsurface
029XESG03 – Clay Uplands
029XESG03 – Clay Uplands
Clay <30% surface and <35% subsurface
sand >75% or texture is Loamy Sand or sandier in surface & subsurface
029XESG12 – Sandy Uplands
029XESG12 – Sandy Uplands
sand <75% and texture is Sandy Loam or finer in surface & subsurface
Clay <20% or texture is Sandy Loam or sandier in surface
029XESG06 – Loamy Uplands
029XESG06 – Loamy Uplands
Clay >20% and texture is finer than Sandy Loam in surface
029XESG05 – Finer Uplands
029XESG05 – Finer Uplands
Print Options
Sections
Font
A
A
A
A
Other
Print
Ecological site group keys
MLRA 29
I.
Additional water
B.
Ephemeral water
II.
Uplands
B.
<75% bedrock outcrop
2
Surface SAR <8 and Subsurface EC <8 and Surface EC <4
ii.
EC <1.5 surface and <2 subsurface
b.
slope <35% or <40% surface rock
3)
Depth >55cm
b)
Rock <30% surface and <30% subsurface
(2)
Clay <30% surface and <35% subsurface
(a)
sand >75% or texture is Loamy Sand or sandier in surface & subsurface
... 029XESG12 – Sandy Uplands
(b)
sand <75% and texture is Sandy Loam or finer in surface & subsurface
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.
Accessibility statement