Natural Resources
Conservation Service
Major Land Resource Area 128X
Major Land Resource Area
Accessed: 04/30/2026
Next steps
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Select an ecological site
Select an ecological site using the list, keys, photos, briefcase, or quick search option located on this page. -
2
Explore the ecological site description
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.
Ecological site list
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ApprovedF128XY052WV/F128XY052WVThermic Very Deep Clayey Non-Cherty Limestone and Dolomite Residuum
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Ecological site map
Basemap
Find me
Find point
Full screen
Zoom in to display soil survey map units for an area of interest, and zoom out to display MLRAs. Select a map unit polygon to view ecological sites correlated to that map unit. View a brief description of an ecological site by clicking on its name in the map popup. Soil survey correlations may not be accurate, and ecological site classification of a location should always be verified in the field. Each selection may require the transfer of several hundred KB of data.
Briefcase
Add ecological sites 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 sites
Major Land Resource Areas
Ecological site photos
Filters
F128XY501WV – Thermic Interbedded Sedimentary Uplands
F128XY504WV – Thermic Alfic Shale Uplands
F128XY507WV – Thermic Limestone With Interbedded Sedimentary Uplands
F128XY508WV – Thermic Sandstone Residuum
F128XY509WV – Thermic Quartzose Limestone And Calcareous Shale Uplands
F128XY511WV – Thermic Residuum And Colluvium From Metamorphic Rocks
F128XY510WV – Thermic Moderately Well Drained Alfic Limestone Uplands
F128XY506WV – Thermic Interbedded Sedimentary Colluvium
F128XY001TN – Thermic Cherty Dolomite Upland Oak-Hickory Forest
F128XY002TN – Thermic Shallow Well Drained Alfic Limestone Uplands
F128XY052WV – Thermic Very Deep Clayey Non-Cherty Limestone and Dolomite Residuum
F128XY500WV – Thermic Limestone And Dolomite Uplands
F128XY502WV – Thermic Floodplain Alluvium
F128XY503WV – Thermic High And Intermediate Stream Terrace Alluvium
F128XY505WV – Thermic Low Stream Terrace Alluvium
F128XY513WV – Mesic Limestone And Dolomite Uplands
F128XY514WV – Mesic Interbedded Sedimentary Uplands
F128XY515WV – Mesic Sandstone Residuum
F128XY516WV – Mesic Limestone With Interbedded Sedimentary Uplands
F128XY518WV – Mesic Alfic Limestone Uplands
F128XY522WV – Mesic Organic Mountain Bog Soils
F128XY517WV – Mesic Interbedded Sedimentary Colluvium
F128XY519WV – Mesic Floodplain Alluvium
F128XY520WV – Mesic High And Intermediate Stream Terrace Alluvium
F128XY521WV – Mesic Low Stream Terrace Alluvium
F128XY512WV – Frigid Interbedded Sedimentary Residuum
Long term average mean annual precipitation
- No filter
- 100 – 120cm (39 – 47in)
- 120 – 140cm (47 – 55in)
- 140 – 500cm (55 – 197in)
Long term average frost free days
- No filter
- 130 – 150days
- 150 – 170days
- 170 – 190days
- 190 – 210days
- No filter
- 0 – 200m (0 – 700ft)
- 200 – 400m (700 – 1300ft)
- 400 – 600m (1300 – 2000ft)
- 600 – 800m (2000 – 2600ft)
- 800 – 1000m (2600 – 3300ft)
- 1000 – 1200m (3300 – 3900ft)
- 1200 – 1400m (3900 – 4600ft)
- 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%
- 80 – 90%
- No filter
- Alluvial fan
- Backswamp
- Bog
- Depression
- Drainageway
- Fan
- Flood plain
- Hill
- Interfluve
- Mountain
- Ridge
- Stream terrace
- Terrace
- Valley
- No filter
- Chert
- Dolomite (dolostone)
- Gneiss
- Granite
- Limestone and dolomite
- Limestone and sandstone
- Limestone and shale
- Limestone and siltstone
- Limestone, argillaceous
- Limestone, cherty
- Limestone, sandstone and shale
- Limestone, unspecified
- Sandstone and shale
- Sandstone and siltstone
- Sandstone, unspecified
- Shale and siltstone
- Shale, acid
- Shale, unspecified
- Slate
- No filter
- Alluvium
- Colluvium
- Creep deposits
- Fluviomarine deposits
- Loess
- Organic, woody material
- Residuum
Soil surface texture
- No filter
- Clay
- Clay loam
- Fine sandy loam
- Loam
- Loamy sand
- Sand
- Sandy clay loam
- Silty clay loam
- Silt loam
- Sandy loam
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Ecological site keys
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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