Major Land Resource Area 128X

Southern Appalachian Ridges and Valleys

Accessed: 12/21/2024

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Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin

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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 128

I. Thermic soil temperature regime

A. Uplands

1. Limestone and Dolomite parent material ... F128XY500WV – Thermic Limestone And Dolomite Uplands

2. Interbedded Sedimentary parent material ... F128XY501WV – Thermic Interbedded Sedimentary Uplands

3. Alfic Shale parent material ... F128XY504WV – Thermic Alfic Shale Uplands

4. Limestone with Interbedded Sedimentary parent material ... F128XY507WV – Thermic Limestone With Interbedded Sedimentary Uplands

5. Sandstone Residuum parent material ... F128XY508WV – Thermic Sandstone Residuum

6. Quartzose Limestone and Calcareous Shale parent material ... F128XY509WV – Thermic Quartzose Limestone And Calcareous Shale Uplands

7. Residuum and Colluvium from Metamorphic Rocks parent material ... F128XY511WV – Thermic Residuum And Colluvium From Metamorphic Rocks

8. Moderately Well Drained Alfic Limestone parent material ... F128XY510WV – Thermic Moderately Well Drained Alfic Limestone Uplands

9. Interbedded Sedimentary Colluvium parent material ... F128XY506WV – Thermic Interbedded Sedimentary Colluvium

B. Floodplains

1. Alluvium parent material ... F128XY502WV – Thermic Floodplain Alluvium

C. Stream Terraces

1. High and Intermediate Alluvium parent material ... F128XY503WV – Thermic High And Intermediate Stream Terrace Alluvium

2. Low Alluvium parent material ... F128XY505WV – Thermic Low Stream Terrace Alluvium

II. Mesic soil temperature regime

A. Uplands

1. Limestone and Dolomite parent material ... F128XY513WV – Mesic Limestone And Dolomite Uplands

2. Interbedded Sedimentary parent material ... F128XY514WV – Mesic Interbedded Sedimentary Uplands

3. Sandstone Residuum parent material ... F128XY515WV – Mesic Sandstone Residuum

4. Limestone with Interbedded Sedimentary parent material ... F128XY516WV – Mesic Limestone With Interbedded Sedimentary Uplands

5. Alfic Limestone parent material ... F128XY518WV – Mesic Alfic Limestone Uplands

6. Organic Mountain Bog parent material ... F128XY522WV – Mesic Organic Mountain Bog Soils

B. Hillsides, Benches, Footslopes

1. Interbedded Sedimentary Colluvium parent material ... F128XY517WV – Mesic Interbedded Sedimentary Colluvium

C. Floodplains

1. Alluvium parent material ... F128XY519WV – Mesic Floodplain Alluvium

D. Stream Terraces

1. High and Intermediate Alluvium parent material ... F128XY520WV – Mesic High And Intermediate Stream Terrace Alluvium

2. Low Alluvium parent material ... F128XY521WV – Mesic Low Stream Terrace Alluvium

III. Frigid soil temperature regime

A. All landforms

1. Interbedded Sedimentary Residuum parent material ... F128XY512WV – Frigid Interbedded Sedimentary Residuum

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