Soil survey area

Frontier County, Nebraska

Survey Area NE063• Nebraska
The short version

The most common soil here is Coly, on about 29% of the land: a silt loam, smooth, like flour. Holdrege and Uly come next.

About 99% of the land drains well.

USDA rates 80% of the land very limited for a standard septic drain field, and 51% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 2% of the land floods occasionally or more.

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 Frontier County, Nebraska, each drawn five feet deep from its official USDA description, in its recorded colors.

Coly
29% of the area
Silt loam topsoil · well drained
Smooth, like flour. Fertile and holds water well.
Entisols
Holdrege
27% of the area
Silt loam topsoil · well drained
Smooth, like flour. Fertile and holds water well.
Mollisols
Uly
19% of the area
Silt loam topsoil · well drained
Smooth, like flour. Fertile and holds water well.
Mollisols
Hall
9% of the area
Silt loam topsoil · well drained
Smooth, like flour. Fertile and holds water well.
Mollisols
Sulco
3% of the area
Loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Inceptisols
Hobbs
2% of the area
Silt loam topsoil · well drained
Smooth, like flour. Fertile and holds water well.
Entisols

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 B (moderate infiltration). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. 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 Frontier County, Nebraska. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Coly and Uly silt loams, 11 to 30 percent slopes 263K Well drainedBVery limitedVery limited
Holdrege silt loam, 1 to 3 percent slopes, plains and breaks 113K Well drainedCNot limitedVery limited
Hall silt loam, 1 to 3 percent slopes 37K Well drainedCNot limitedVery limited
Holdrege silt loam, 3 to 7 percent slopes, eroded, plains and breaks 30K Well drainedCNot limitedSomewhat limited
Holdrege silt loam, 1 to 3 percent slopes, eroded 28K Well drainedCNot limitedSomewhat limited
Uly and Coly silt loams, 11 to 30 percent slopes 24K Well drainedBSomewhat limitedSomewhat limited
Hall silt loam, 0 to 1 percent slopes 22K Well drainedCSomewhat limitedVery limited
Coly-Uly-Hobbs silt loams, 3 to 60 percent slopes 15K Well drainedBVery limitedVery limited
Sulco-Ulysses silt loams, 9 to 30 percent slopes, eroded 11K Well drainedBVery limitedVery limited
Sulco silt loam, 30 to 60 percent slopes 9K Well drainedBVery limitedVery limited
Coly silt loam, 11 to 17 percent slopes, eroded 8K Well drainedBSomewhat limitedSomewhat limited
Uly-Coly silt loams, 11 to 30 percent slopes 7K Well drainedBSomewhat limitedSomewhat limited
Coly-Uly silt loams, 11 to 30 percent slopes 6K Well drainedBVery limitedVery limited
McCook silt loam, occasionally flooded 5K Well drainedBVery limitedVery limited
Hobbs silt loam, frequently flooded 4K Well drainedBVery limitedVery limited
Uly and Coly silt loams, 6 to 11 percent slopes, eroded 4K Well drainedBNot limitedSomewhat limited
Coly silt loam, 6 to 11 percent slopes 4K Well drainedBSomewhat limitedSomewhat limited
Water 4K Not ratedNot rated
Hord silt loam, 0 to 1 percent slopes, warm 3K Well drainedBNot limitedSomewhat limited
Holdrege silt loam, 3 to 7 percent slopes, plains and breaks 3K Well drainedCNot limitedSomewhat 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.

Mollisols
Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.
Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.
Inceptisols
Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

What This Means

Building & Foundations

About 51% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 80% 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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