Major Land Resource Area 127X
Eastern Allegheny Plateau and Mountains
Accessed: 05/19/2025
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Viewing 13 of 13
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Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: otherwise (not poorly drained, not very poorly drained);
- Frigid soil temperature regime;
- In Northern Unglaciated Allegheny Plateau - Pennsylvania and New York (cool frigid above 39°43′ N latitude) - Cold Uplands
- In Allegheny Mountains - other than Pennsylvania and New York (mostly WV)
- Soils Spodosols or of Spodic subgroup
- Soils not rubbly
- Soils a True Spodosol – Spodic Shale Upland Conifer Forest
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i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: otherwise (not poorly drained, not very poorly drained);
- Frigid soil temperature regime;
- In Northern Unglaciated Allegheny Plateau - Pennsylvania and New York (cool frigid above 39°43′ N latitude) - Cold Uplands
- In Allegheny Mountains - other than Pennsylvania and New York (mostly WV)
- Soils Spodosols or of Spodic subgroup
- Soils not rubbly
- Soils of Spodic subgroup – Spodic Intergrade Shale Upland Hardwood and Conifer Forest
-
i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: otherwise (not poorly drained, not very poorly drained);
- Frigid soil temperature regime;
- Mesic soil temperature regime
- Soils otherwise (not colluvial)
- Soils skeletal and 100cm or less – Acid Shale Upland Oak/Heath
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i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent Material Alluvium;
- Flood frequency: frequent, occasional, or rare – Flood plains;
- Soil drainage: poorly-drained to VPD - Wet Alluvial Land
-
i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent Material Alluvium;
- Flood frequency: frequent, occasional, or rare – Flood plains;
- Soil drainage: otherwise (not poorly-drained to VPD) - Alluvial Land
-
i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent Material Alluvium;
- Flood frequency: none - Terraces
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i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: poorly drained, very poorly drained - Wet Uplands
-
i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: otherwise (not poorly drained, not very poorly drained);
- Frigid soil temperature regime;
- In Northern Unglaciated Allegheny Plateau - Pennsylvania and New York (cool frigid above 39°43′ N latitude) - Cold Uplands
-
i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: otherwise (not poorly drained, not very poorly drained);
- Frigid soil temperature regime;
- In Northern Unglaciated Allegheny Plateau - Pennsylvania and New York (cool frigid above 39°43′ N latitude) - Cold Uplands
- In Allegheny Mountains - other than Pennsylvania and New York (mostly WV)
- if otherwise - Frigid High Elevation Uplands
-
i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: otherwise (not poorly drained, not very poorly drained);
- Frigid soil temperature regime;
- Mesic soil temperature regime
- Soils colluvial - Convergent Uplands
-
i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: otherwise (not poorly drained, not very poorly drained);
- Frigid soil temperature regime;
- Mesic soil temperature regime
- Soils otherwise (not colluvial)
- Soils not skeletal or > 100cm deep Divergent Uplands
-
i
Key Characteristics
- Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
- Parent material otherwise (not alluvium);
- Soil drainage: otherwise (not poorly drained, not very poorly drained);
- Frigid soil temperature regime;
- In Northern Unglaciated Allegheny Plateau - Pennsylvania and New York (cool frigid above 39°43′ N latitude) - Cold Uplands
- In Allegheny Mountains - other than Pennsylvania and New York (mostly WV)
- Soils Spodosols or of Spodic subgroup
- Soils rubbly – Rubbly Upland Conifer Forest
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i
Key Characteristics
- Human Transported Materials (HTM) or Mine Spoils
- Mine Spoil (reserved)… Mine Spoil
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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.
Ecological site keys
MLRA 127 PES Key (dichotomous)
1a.
Soils not Human Altered Transported Materials (HAHT) or Mine Spoils;
2a.
Parent Material Alluvium;
3b.
Flood frequency: frequent, occasional, or rare – Flood plains;
4b.
Soil drainage: otherwise (not poorly-drained to VPD) - Alluvial Land
... F127XY005WV – Alluvial Land
2b.
Parent material otherwise (not alluvium);
5b.
Soil drainage: otherwise (not poorly drained, not very poorly drained);
6a.
Frigid soil temperature regime;
7a.
In Northern Unglaciated Allegheny Plateau - Pennsylvania and New York (cool frigid above 39°43′ N latitude) - Cold Uplands
... F127XY010WV – Cold Uplands
7b.
In Allegheny Mountains - other than Pennsylvania and New York (mostly WV)
8a.
Soils Spodosols or of Spodic subgroup
9b.
Soils not rubbly
10a.
Soils a True Spodosol – Spodic Shale Upland Conifer Forest
... F127XY001WV – Spodic Shale Upland Conifer Forest
10b.
Soils of Spodic subgroup – Spodic Intergrade Shale Upland Hardwood and Conifer Forest
... F127XY002WV – Spodic Intergrade Shale Upland Hardwood And Conifer Forest
6b.
Mesic soil temperature regime
11b.
Soils otherwise (not colluvial)
12b.
Soils skeletal and 100cm or less – Acid Shale Upland Oak/Heath
... F127XY003WV – Acidic Shale Upland Oak/Heath
1b.
Human Transported Materials (HTM) or Mine Spoils
13b.
Urban HATM Uplands (reserved) [udorthents] --- Urbanland (reserved)
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