Natural Resources
Conservation Service
Major Land Resource Area 101X
Major Land Resource Area
Accessed: 04/24/2026
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1
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.
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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.
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Add ecological sites and Major Land Resource Areas to your briefcase by clicking on the briefcase (
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Ecological sites
Major Land Resource Areas
Ecological site photos
Tools
Filter by
interactive key
precipitation
frost free days
more..
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Type
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Filters
Interactive key
Precipitation
Frost free days
Elevation
Slope
Landform
Parent material origin
Parent material kind
Soil texture
Site periodically flooded during the growing season, adjacent to a river or stream
Site not periodically flooded during the growing season, not adjacent to a river or stream
Soil drainage class: well drained
F101XY001NY – High Floodplain
F101XY001NY – High Floodplain
Soil drainage class: moderately well drained to very poorly drained
Soil drainage class: moderately well drained or somewhat poorly drained
F101XY002NY – Low Floodplain
F101XY002NY – Low Floodplain
Soil drainage class: poorly to very poorly drained
F101XY003NY – Low Floodplain Depression
F101XY003NY – Low Floodplain Depression
Substrate with > 20 cm of organic material - Mucky Depression
F101XY004NY – Mucky Depression
F101XY004NY – Mucky Depression
Substrate with < 20 cm of organic material or with no organic material
Parent material glacial outwash, soils mostly coarse to medium textured
Parent material glacial till or glaciolacustrine, soils coarse textured (sandy loams) to fine textured (clays)
Soil drainage class: excessively drained to well drained
F101XY005NY – Dry Outwash
F101XY005NY – Dry Outwash
Soil drainage class: moderately well drained to very poorly drained
Soil drainage class: moderately well drained or somewhat poorly drained
F101XY006NY – Moist Outwash
F101XY006NY – Moist Outwash
Soil drainage class: poorly to very poorly drained
F101XY007NY – Wet Outwash
F101XY007NY – Wet Outwash
Parent material glaciolacustrine, soils moderately coarse textured to fine textured
Parent material glacial till, soils moderately coarse textured to medium textured
Soil drainage class: well drained
F101XY008NY – Well Drained Lake Plain
F101XY008NY – Well Drained Lake Plain
Soil drainage class: moderately well drained to very poorly drained
Soil drainage class: moderately well drained or somewhat poorly drained
F101XY009NY – Moist Lake Plain
F101XY009NY – Moist Lake Plain
Soil drainage class: poorly to very poorly drained
F101XY010NY – Wet Lake Plain Depression
F101XY010NY – Wet Lake Plain Depression
Soil drainage class: excessively drained to well drained
Soil drainage class (moderately well drained to very poorly drained)
Soils shallow (< 50cm) to bedrock
F101XY011NY – Shallow Till Upland
F101XY011NY – Shallow Till Upland
Soils moderately deep to very deep (> 50cm) to bedrock
F101XY012NY – Till Upland
F101XY012NY – Till Upland
Soil drainage class: moderately well drained to somewhat poorly drained
F101XY013NY – Moist Till
F101XY013NY – Moist Till
Soil drainage class: poorly to very poorly drained
F101XY014NY – Wet Till Depression
F101XY014NY – Wet Till Depression
Long term average mean annual precipitation
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—
cm
Long term average frost free days
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- 130 – 150days
—
days
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- 0 – 200m (0 – 700ft)
- 200 – 400m (700 – 1300ft)
- 400 – 600m (1300 – 2000ft)
- 600 – 800m (2000 – 2600ft)
- 800 – 1000m (2600 – 3300ft)
- 1000 – 1200m (3300 – 3900ft)
—
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%
—
%
- No filter
- Alluvial fan
- Beach ridge
- Bench
- Bog
- Delta
- Depression
- Drainageway
- Drumlin
- Drumlinoid ridge
- Esker
- Flood plain
- Hill
- Kame
- Knoll
- Lake plain
- Lake terrace
- Longshore bar (relict)
- Moraine
- Outwash plain
- Outwash terrace
- Reworked lake plain
- Ridge
- Swamp or marsh
- Terrace
- Till plain
- Valley side
- Valley train
- No filter
- Dolomite (dolostone)
- Granite
- Limestone and shale
- Limestone, sandstone and shale
- Limestone, unspecified
- Sandstone, unspecified
- Schist, unspecified
- Shale and siltstone
- Siltstone, unspecified
- No filter
- Alluvium
- Cryoturbate
- Eolian deposits
- Glaciofluvial deposits
- Glaciolacustrine deposits
- Glaciomarine deposits
- Organic, herbaceous material
- Organic, unspecified
- Organic, woody material
- Residuum
- Till, unspecified
Soil surface texture
- No filter
- Fine sand
- Fine sandy loam
- Loam
- Loamy fine sand
- Silty clay loam
- Silt loam
- Sandy loam
- Very fine sandy loam
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Ecological site keys
MLRA 101 PES Key
1a.
Site periodically flooded during the growing season, adjacent to a river or stream
2b.
Soil drainage class: moderately well drained to very poorly drained
3a.
Soil drainage class: moderately well drained or somewhat poorly drained
... F101XY002NY – Low Floodplain
1b.
Site not periodically flooded during the growing season, not adjacent to a river or stream
4a.
Substrate with > 20 cm of organic material - Mucky Depression
... F101XY004NY – Mucky Depression
4b.
Substrate with < 20 cm of organic material or with no organic material
5a.
Parent material glacial outwash, soils mostly coarse to medium textured
6b.
Soil drainage class: moderately well drained to very poorly drained
7a.
Soil drainage class: moderately well drained or somewhat poorly drained
... F101XY006NY – Moist Outwash
5b.
Parent material glacial till or glaciolacustrine, soils coarse textured (sandy loams) to fine textured (clays)
8a.
Parent material glaciolacustrine, soils moderately coarse textured to fine textured
9b.
Soil drainage class: moderately well drained to very poorly drained
10a.
Soil drainage class: moderately well drained or somewhat poorly drained
... F101XY009NY – Moist Lake Plain
8b.
Parent material glacial till, soils moderately coarse textured to medium textured
11a.
Soil drainage class: excessively drained to well drained
11b.
Soil drainage class (moderately well drained to very poorly drained)
13a.
Soil drainage class: moderately well drained to somewhat poorly drained
... F101XY013NY – Moist Till
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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