Major Land Resource Area 130A
Northern Blue Ridge
Accessed: 05/19/2025
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Key Characteristics
- Residuum or High-elevation Residuum
- Residuum – ridge tops, middle to upper sideslopes -
- Geology/Parent Material - Granitic, mixed metamorphic, and igneous (*Proterozoic (pre-cambrian) basement geology) - (depths are lumped due to scale of mapping) – [Mixed Metamorphic and Granitic Upland]
- Residuum – ridge tops, middle to upper sideslopes
- Granitic, mixed metamorphic, and igneous (Proterozoic (pre-cambrian) basement geology) (depths are lumped due to scale of mapping)
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i
Key Characteristics
- Residuum or High-elevation Residuum
- Residuum – ridge tops, middle to upper sideslopes -
- Geology/Parent Material Otherwise –
- Geology/Parent Material - Metabasalt (Proterozoic to early Paleozoic (Cambrian)) (depths are lumped due to scale of mapping) – [Metabasalt Upland]
- Residuum – ridge tops, middle to upper sideslopes
- Metabasalt (Proterozoic to early Paleozoic (Cambrian))(depths are lumped due to scale of mapping)
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i
Key Characteristics
- Residuum or High-elevation Residuum
- Residuum – ridge tops, middle to upper sideslopes -
- Geology/Parent Material Otherwise –
- Geology/Parent Material Otherwise –
- Geology/Parent Material– Phyllites, metasandstone (Early Paleozoic (Cambrian to late Cambrian): Harpers, Weverton, Hampton) (depths are lumped due to scale of mapping) – [Phyllite-Metasandstone Upland]
- Residuum – ridge tops, middle to upper sideslopes
- Phyllites, metasandstone (Early Paleozoic (Cambrian to late Cambrian): Harpers, Weverton, Hampton) (depths are lumped due to scale of mapping)
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Key Characteristics
- Residuum or High-elevation Residuum
- Residuum – ridge tops, middle to upper sideslopes -
- Geology/Parent Material Otherwise –
- Geology/Parent Material Otherwise –
- Geology/Parent Material– Quartzites, highly resistant (Early Paleozoic (Cambrian to late Cambrian) –Chilhowie group) - bedrock mod deep to deep – [Quartzitic Upland]
- Residuum – ridge tops, middle to upper sideslopes
- Quartzites, highly resistant (Early Paleozoic (Cambrian to late Cambrian) –Chilhowie group) Bedrock Mod deep to Deep
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Key Characteristics
- Colluvium, Colluvium/Alluvium, Alluvium
- Colluvium - footslopes, benches
- Igneous, mixed metamorphic including metabasalts (Proterozoic to early Paleozoic geology), well-drained and MWD – [Mixed Metamorphic - Metabasalt Footslopes and Terraces]
- Colluvium - footslopes, benches
- Igneous, mixed metamorphic including metabasalts (Proterozoic to early Paleozoic geology) Well Drained and MWD
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i
Key Characteristics
- Colluvium, Colluvium/Alluvium, Alluvium
- Colluvium - footslopes, benches
- Quartzites, phyllites, metasandstone, well-drained and MWD – [Quartzitic Footslopes and Terraces]
- Colluvium - footslopes, benches
- Quartzites, phyllites, metasandstone Well Drained and MWD
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i
Key Characteristics
- Colluvium, Colluvium/Alluvium, Alluvium
- Colluvium/Alluvium or Alluvium
- Alluvium - Floodplains - Mixed metamorphic, Well Drained and MWD -- Fine to Loamy Mixed Metamorphic Floodplain]
- Floodplains - alluvium
- Mixed metamorphic Well Drained and MWD
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Key Characteristics
- Colluvium, Colluvium/Alluvium, Alluvium
- Colluvium/Alluvium or Alluvium
- Colluvium/Alluvium –Toeslopes, Drainageways, and floodplains – colluvium/alluvium, Mixed Metamorphic, Poorly Drained and SPD – [Poorly to Somewhat Poorly Drained Floodplains and Toeslopes]
- Toeslopes, Drainageways, and floodplains – colluvium/alluvium
- Mixed Metamorphic Poorly Drained and SPD
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i
Key Characteristics
- Residuum or High-elevation Residuum
- High-elevation Residuum – ridge tops and possible 130b soils - Granitic, mixed metamorphic, meta-basalt, and igneous (Proterozoic early Paleozoic) Elevation >3000’ – [High Elevation Uplands]
- Hi elevation residuum – ridge tops and possible 130b soils
- Granitic, mixed metamorphic, meta-basalt, and igneous (Proterozoic early Paleozoic) Elevation >3000’
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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 130A Key
1a.
Residuum or High-elevation Residuum
2a.
High-elevation Residuum – ridge tops and possible 130b soils - Granitic, mixed metamorphic, meta-basalt, and igneous (Proterozoic early Paleozoic) Elevation >3000’ – [High Elevation Uplands]
... F130AY009VA – High Elevation Uplands
2b.
Residuum – ridge tops, middle to upper sideslopes -
3a.
Geology/Parent Material - Granitic, mixed metamorphic, and igneous (*Proterozoic (pre-cambrian) basement geology) - (depths are lumped due to scale of mapping) – [Mixed Metamorphic and Granitic Upland]
... F130AY001PA – Mixed Metamorphic And Granitic Upland
3b.
Geology/Parent Material Otherwise –
4a.
Geology/Parent Material - Metabasalt (Proterozoic to early Paleozoic (Cambrian)) (depths are lumped due to scale of mapping) – [Metabasalt Upland]
... F130AY002PA – Metabasalt Upland
4b.
Geology/Parent Material Otherwise –
5b.
Geology/Parent Material– Phyllites, metasandstone (Early Paleozoic (Cambrian to late Cambrian): Harpers, Weverton, Hampton) (depths are lumped due to scale of mapping) – [Phyllite-Metasandstone Upland]
... F130AY003PA – Phyllite-Metasandstone Upland
5b.
Geology/Parent Material– Quartzites, highly resistant (Early Paleozoic (Cambrian to late Cambrian) –Chilhowie group) - bedrock mod deep to deep – [Quartzitic Upland]
... F130AY004PA – Quartzitic Upland
1b.
Colluvium, Colluvium/Alluvium, Alluvium
6a.
Colluvium - footslopes, benches
7a.
Igneous, mixed metamorphic including metabasalts (Proterozoic to early Paleozoic geology), well-drained and MWD – [Mixed Metamorphic - Metabasalt Footslopes and Terraces]
... F130AY005PA – Mixed Metamorphic - Metabasalt Footslopes And Terraces
7b.
Quartzites, phyllites, metasandstone, well-drained and MWD – [Quartzitic Footslopes and Terraces]
... F130AY006PA – Quartzitic Footslopes And Terraces
6b.
Colluvium/Alluvium or Alluvium
8a.
Alluvium - Floodplains - Mixed metamorphic, Well Drained and MWD -- Fine to Loamy Mixed Metamorphic Floodplain]
... F130AY007PA – Fine To Loamy Mixed Metamorphic Floodplain
8b.
Colluvium/Alluvium –Toeslopes, Drainageways, and floodplains – colluvium/alluvium, Mixed Metamorphic, Poorly Drained and SPD – [Poorly to Somewhat Poorly Drained Floodplains and Toeslopes]
... F130AY008PA – Poorly To Somewhat Poorly Drained Floodplains And Toeslopes
MLRA 130A Outline
I.
Residuum – ridge tops, middle to upper sideslopes
A.
Granitic, mixed metamorphic, and igneous (Proterozoic (pre-cambrian) basement geology) (depths are lumped due to scale of mapping)
... F130AY001PA – Mixed Metamorphic And Granitic Upland
B.
Metabasalt (Proterozoic to early Paleozoic (Cambrian))(depths are lumped due to scale of mapping)
... F130AY002PA – Metabasalt Upland
C.
Phyllites, metasandstone (Early Paleozoic (Cambrian to late Cambrian): Harpers, Weverton, Hampton) (depths are lumped due to scale of mapping)
... F130AY003PA – Phyllite-Metasandstone Upland
D.
Quartzites, highly resistant (Early Paleozoic (Cambrian to late Cambrian) –Chilhowie group) Bedrock Mod deep to Deep
... F130AY004PA – Quartzitic Upland
II.
Colluvium - footslopes, benches
A.
Igneous, mixed metamorphic including metabasalts (Proterozoic to early Paleozoic geology) Well Drained and MWD
... F130AY005PA – Mixed Metamorphic - Metabasalt Footslopes And Terraces
B.
Quartzites, phyllites, metasandstone Well Drained and MWD
... F130AY006PA – Quartzitic Footslopes And Terraces
III.
Floodplains - alluvium
A.
Mixed metamorphic Well Drained and MWD
... F130AY007PA – Fine To Loamy Mixed Metamorphic Floodplain
IV.
Toeslopes, Drainageways, and floodplains – colluvium/alluvium
A.
Mixed Metamorphic Poorly Drained and SPD
... F130AY008PA – Poorly To Somewhat Poorly Drained Floodplains And Toeslopes
V.
Hi elevation residuum – ridge tops and possible 130b soils
A.
Granitic, mixed metamorphic, meta-basalt, and igneous (Proterozoic early Paleozoic) Elevation >3000’
... F130AY009VA – High Elevation Uplands
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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.
