Natural Resources
Conservation Service
Major Land Resource Area 153A
Major Land Resource Area
Accessed: 04/30/2026
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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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Ecological sites
Major Land Resource Areas
Ecological site photos
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interactive key
precipitation
frost free days
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Type
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Precipitation
Frost free days
Elevation
Slope
Landform
Parent material kind
Soil texture
: Marine Terrace Uplands - Positioned on a marine terrace or associated landforms. These sites include upper fluvio-marine terraces that are above the current dominant flooding regime.
: Riparian Zone - Positioned on a riparian landscape, including fluvial terraces and flood plains, connected directly to surface water and flooding.
: Upland flats and landforms with local topographic relief: knolls, ridges, crests, interstream divides, shoulders, slopes, depressions, and Bay rims
: Flats and Depressions: Areas characterized by a continuous surface that is smooth, even, or horizontal, or nearly so, including isolated depressions within the flat landscape matrix
Order: Predominantly psamments (sands)
Order: Predominantly Ultisols, but includes some alfisols, inceptisols, and mollisols.
: Dry sands, excessively drained to well drained, typic quartzipsamments.
F153AY010NC – Dry Sands
F153AY010NC – Dry Sands
: Moist sands on moderately well drained to somewhat poorly drained soils.
F153AY020NC – Moist Sands
F153AY020NC – Moist Sands
: Dry, somewhat excessively drained to well drained.
: Soil Texture Particle Size loamy. Includes fine-silty, fine-loamy, loamy, and coarse-loamy taxonomic textural families.
F153AY030NC – Dry Loamy Rises and Flats
F153AY030NC – Dry Loamy Rises and Flats
: Soil Texture Particle Size clay. Includes the fine taxonomic textural family
F153AY035NC – Dry Clay Rises and Flats
F153AY035NC – Dry Clay Rises and Flats
Order: Predominantly Ultisols, but includes some alfisols, inceptisols, and mollisols.
Order: Spodosols
Order: Histosols
F153AY080NC – Wet Organic Soil Flats and Depressions
F153AY080NC – Wet Organic Soil Flats and Depressions
: Moist, moderately well drained to somewhat poorly drained.
: Wet, poorly drained and very poorly drained. Some ponding.
: Soil Texture Particle Size loamy. Includes fine-silty, fine-loamy, loamy, and coarse-loamy taxonomic textural families.
: Soil Texture Particle Size clay. Includes the fine taxonomic textural family
F153AY045NC – Moist Clay Rises and Flats
F153AY045NC – Moist Clay Rises and Flats
: PES Corresponds to R153AY001GA but mostly at a latitude North of the Santee River.
F153AY040NC – Moist Loamy Rises and Flats
F153AY040NC – Moist Loamy Rises and Flats
: South of the Santee River
R153AY001GA – Loamy Rise, Moderately Wet
R153AY001GA – Loamy Rise, Moderately Wet
: Soil Texture Particle Size loamy. Includes fine-silty, fine-loamy, loamy, and coarse-loamy taxonomic textural families.
F153AY060NC – Wet Loamy Flats and Depressions
F153AY060NC – Wet Loamy Flats and Depressions
: Soil Texture Particle Size clay. Includes the fine taxonomic textural family
F153AY065NC – Wet Clay Flats and Depressions
F153AY065NC – Wet Clay Flats and Depressions
: Moist, somewhat poorly drained.
F153AY050NC – Moist Spodosol Rises and Flats
F153AY050NC – Moist Spodosol Rises and Flats
: Wet, poorly drained and very poorly drained. Some ponding.
F153AY070NC – Wet Spodosol Flats and Depressions
F153AY070NC – Wet Spodosol Flats and Depressions
Order: Flooded, mineral soils include alfisols, entisols, inceptisols, and mollisols
F153AY090NC – Flooded Mineral Soil Flood Plains and Terraces
F153AY090NC – Flooded Mineral Soil Flood Plains and Terraces
Order: Flooded Histosols
F153AY100NC – Flooded Organic Soil Flood Plains and Terraces
F153AY100NC – Flooded Organic Soil Flood Plains and Terraces
Long term average mean annual precipitation
- No filter
- 120 – 140cm (47 – 55in)
—
cm
Long term average frost free days
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- 210 – 230days
- 230 – 250days
- 250 – 270days
- 270 – 290days
- 290 – 310days
—
days
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- 0 – 200m (0 – 700ft)
—
m
- No filter
- 0 – 3%
- 3 – 5%
- 5 – 10%
—
%
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- Carolina Bay
- Depression
- Drainageway
- Flat
- Flatwoods
- Flood plain
- Hill
- Interfluve
- Marine terrace
- Pocosin
- Ridge
- Rise
- Stream terrace
- Swamp
- No filter
- Alluvium
- Eolian sands
- Fluviomarine deposits
- Marine deposits
- Organic, herbaceous material
- Organic, unspecified
Soil surface texture
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- Coarse sand
- Fine sand
- Fine sandy loam
- Loam
- Loamy fine sand
- Loamy sand
- Sand
- Sandy loam
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Ecological site keys
MLRA 153A, Atlantic Coast Flatwoods
Landscape
: Marine Terrace Uplands - Positioned on a marine terrace or associated landforms. These sites include upper fluvio-marine terraces that are above the current dominant flooding regime.
Landform
: Upland flats and landforms with local topographic relief: knolls, ridges, crests, interstream divides, shoulders, slopes, depressions, and Bay rims
Soil
Order: Predominantly psamments (sands)
Drainage
: Dry sands, excessively drained to well drained, typic quartzipsamments.
... F153AY010NC – Dry Sands
Drainage
: Moist sands on moderately well drained to somewhat poorly drained soils.
... F153AY020NC – Moist Sands
Soil
Order: Predominantly Ultisols, but includes some alfisols, inceptisols, and mollisols.
Drainage
: Dry, somewhat excessively drained to well drained.
Texture
: Soil Texture Particle Size loamy. Includes fine-silty, fine-loamy, loamy, and coarse-loamy taxonomic textural families.
... F153AY030NC – Dry Loamy Rises and Flats
Texture
: Soil Texture Particle Size clay. Includes the fine taxonomic textural family
... F153AY035NC – Dry Clay Rises and Flats
Landform
: Flats and Depressions: Areas characterized by a continuous surface that is smooth, even, or horizontal, or nearly so, including isolated depressions within the flat landscape matrix
Soil
Order: Predominantly Ultisols, but includes some alfisols, inceptisols, and mollisols.
Drainage
: Moist, moderately well drained to somewhat poorly drained.
Texture
: Soil Texture Particle Size loamy. Includes fine-silty, fine-loamy, loamy, and coarse-loamy taxonomic textural families.
Latitude
: PES Corresponds to R153AY001GA but mostly at a latitude North of the Santee River.
... F153AY040NC – Moist Loamy Rises and Flats
Texture
: Soil Texture Particle Size clay. Includes the fine taxonomic textural family
... F153AY045NC – Moist Clay Rises and Flats
Drainage
: Wet, poorly drained and very poorly drained. Some ponding.
Texture
: Soil Texture Particle Size loamy. Includes fine-silty, fine-loamy, loamy, and coarse-loamy taxonomic textural families.
... F153AY060NC – Wet Loamy Flats and Depressions
Texture
: Soil Texture Particle Size clay. Includes the fine taxonomic textural family
... F153AY065NC – Wet Clay Flats and Depressions
Soil
Order: Spodosols
Drainage
: Wet, poorly drained and very poorly drained. Some ponding.
... F153AY070NC – Wet Spodosol Flats and Depressions
Landscape
: Riparian Zone - Positioned on a riparian landscape, including fluvial terraces and flood plains, connected directly to surface water and flooding.
Soil
Order: Flooded, mineral soils include alfisols, entisols, inceptisols, and mollisols
... F153AY090NC – Flooded Mineral Soil Flood Plains and Terraces
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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