Natural Resources
Conservation Service
Major Land Resource Area 078B
Major Land Resource Area
Accessed: 05/03/2026
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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.
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Viewing 15 of 15
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i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
-
i
Key Characteristics
- Sites concentrated around the east flanks of Crater lake
- Not as above
- Site occupying ash flows or alluvial fans
- Slopes flat to gentle, occupying low landscape positions in basins and drainages
- Soils somewhat excessively drained
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
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Filters
Interactive key
Additional water
Uplands
Perennial water
078BESG08 – Riparian
078BESG08 – Riparian
Ephemeral water
Subsurface EC >4
078BESG09 – Saline Bottoms
078BESG09 – Saline Bottoms
Subsurface EC <4
Sand >50% & clay <25% for surface and subsurface
078BESG12 – Sandy Bottoms
078BESG12 – Sandy Bottoms
Sand <50% or clay >25% for surface and subsurface
078BESG01 – Bottoms
078BESG01 – Bottoms
>75% bedrock outcrop
078BESG07 – Outcrops
078BESG07 – Outcrops
<75% bedrock outcrop
Surface SAR >8
078BESG10 – Saline Hills
078BESG10 – Saline Hills
Surface SAR <8
Gypsum >5% surface or >10% subsurface
078BESG05 – Gypsum
078BESG05 – Gypsum
Gypsum <5% surface and <10% subsurface
Subsurface EC >8 or surface EC >4
078BESG10 – Saline Hills
078BESG10 – Saline Hills
Subsurface EC <8 and surface EC <4
EC >1.5 surface or >2 subsurface
078BESG11 – Saline Uplands
078BESG11 – Saline Uplands
EC <1.5 surface and <2 subsurface
Depth <30cm
078BESG15 – Very Shallow
078BESG15 – Very Shallow
Depth: 30-55cm
078BESG14 – Shallow
078BESG14 – Shallow
Depth >55cm
Rock >30% surface or >30% subsurface
078BESG03 – Deep Rocky
078BESG03 – Deep Rocky
Rock <30% surface and <30% subsurface
Clay >30% surface or >35% subsurface
078BESG02 – Clay Uplands
078BESG02 – Clay Uplands
Clay <30% surface and <35% subsurface
Sand >75% or texture is loamy sand or sandier in surface & subsurface
078BESG13 – Sandy Uplands
078BESG13 – Sandy Uplands
Sand <75% or texture is sandy loam or finer in surface & subsurface
Clay <20% or texture is sandy loam or sandier in surface
078BESG06 – Loamy Uplands
078BESG06 – Loamy Uplands
Clay >20% or texture is finer than sandy loam in surface
078BESG04 – Finer Uplands
078BESG04 – Finer Uplands
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Ecological site group keys
MLRA 78B
I.
Additional water
B.
Ephemeral water
2
Subsurface EC <4
II.
Uplands
B.
<75% bedrock outcrop
2
Surface SAR <8
ii.
Gypsum <5% surface and <10% subsurface
b.
Subsurface EC <8 and surface EC <4
2)
EC <1.5 surface and <2 subsurface
c)
Depth >55cm
(2)
Rock <30% surface and <30% subsurface
(b)
Clay <30% surface and <35% subsurface
(1)
Sand >75% or texture is loamy sand or sandier in surface & subsurface
... 078BESG13 – Sandy Uplands
(2)
Sand <75% or 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.
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