Soil survey area

Crawford County, Arkansas

Survey Area AR033• Arkansas
The short version

The most common soil here is Enders, on about 32% of the land: a gravelly fine sandy loam, gritty and crumbly. Nella and Mountainburg come next.

About 84% of the land drains well, and 4% stays wet for long stretches; groundwater comes within two feet of the surface under 13% of it.

USDA rates 93% of the land very limited for a standard septic drain field, and 85% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 8% of the land floods occasionally or more, and bedrock lies within 40 inches under 18% of it.

Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.

The ground underfoot

The soils you're most likely standing on

The biggest named soils in Crawford County, Arkansas, each drawn five feet deep from its official USDA description, in its recorded colors.

Enders
32% of the area
Gravelly fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Ultisols
Nella
17% of the area
Cobbly loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Ultisols
Mountainburg
12% of the area
Cobbly fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Ultisols
Leadvale
8% of the area
Silt loam topsoil · moderately well drained
Smooth, like flour. Fertile and holds water well.
Ultisols
Linker
6% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Ultisols
Spadra
5% of the area
Loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Ultisols

Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.

The biggest mapped areas

The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Ultisols — strongly weathered soils with clay-enriched subsoils, common in warm humid climates. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Crawford County, Arkansas. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Nella-Enders complex, 20 to 40 percent slopes 112K Well drainedDVery limitedVery limited
Enders stony fine sandy loam, 12 to 50 percent slopes 43K Well drainedDVery limitedVery limited
Enders gravelly fine sandy loam, 8 to 20 percent slopes 31K Well drainedDSomewhat limitedVery limited
Leadvale silt loam, 3 to 8 percent slopes 23K Moderately well drainedC/DVery limitedVery limited
Spadra fine sandy loam, 0 to 3 percent slopes, occasionally flooded 23K Well drainedBVery limitedVery limited
Linker fine sandy loam, 3 to 8 percent slopes 21K Well drainedCVery limitedVery limited
Mountainburg gravelly fine sandy loam, 3 to 8 percent slopes 19K Well drainedDVery limitedVery limited
Leadvale silt loam, 1 to 3 percent slopes 12K Moderately well drainedC/DVery limitedVery limited
Nella-Enders association, very steep 12K Well drainedBVery limitedVery limited
Wrightsville silt loam, 0 to 1 percent slopes 9K Poorly drainedDVery limitedVery limited
Mountainburg stony fine sandy loam, 1 to 12 percent slopes, rocky 9K Well drainedDVery limitedVery limited
Water 8K DNot ratedNot rated
Enders-Mountainburg association, 8 to 20 percent slopes 8K Well drainedDVery limitedVery limited
Roxana silt loam 7K Well drainedBSomewhat limitedSomewhat limited
Roellen silty clay loam 6K Poorly drainedC/DVery limitedVery limited
Nella-Mountainburg association, steep 5K Well drainedBVery limitedVery limited
Linker-Mountainburg association, undulating 5K Well drainedCVery limitedVery limited
Dardanelle silt loam 4K Well drainedBNot limitedSomewhat limited
Dardanelle silt loam, overwash 4K Well drainedBVery limitedSomewhat limited
Enders-Mountainburg association, 20 to 40 percent slopes 4K Well drainedDVery limitedVery limited

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Ultisols
Strongly weathered clay soils of the Southeast. Acidic and naturally low in nutrients. Clay subsoil can slow drainage.
Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.
Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.
Mollisols
Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

What This Means

Building & Foundations

About 85% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 93% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.

Look Up a Specific Address

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