Crook County, Wyoming

Survey Area WY011• Wyoming

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 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 Crook County, Wyoming. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map Unit	Acres	Drainage	Hydro Group	Dwellings	Septic
Lakoa-Crownest complex, 10 to 60 percent slopes	97K	Well drained	D	Very limited	Very limited
Tollflat-Hickok-Vanocker complex, 10 to 60 percent slopes	70K	Well drained	B	Very limited	Very limited
Louviers clay, 3 to 30 percent slopes	65K	Well drained	D	Very limited	Very limited
Samsil-Cromack complex, 10 to 30 percent slopes	53K	Well drained	D	Very limited	Very limited
Louviers-Grummit complex, 10 to 30 percent slopes	53K	Well drained	D	Very limited	Very limited
Fairburn-Ucross loams, 10 to 30 percent slopes	38K	Well drained	D	Very limited	Very limited
Winler-Razor clay loams, 2 to 10 percent slopes	34K	Well drained	D	Very limited	Very limited
Citadel-McCooley complex, 10 to 40 percent slopes	31K	Well drained	C	Very limited	Very limited
Boneek loam, 2 to 6 percent slopes	30K	Well drained	C	Somewhat limited	Somewhat limited
Grummit-Querc complex, 3 to 10 percent slopes	29K	Well drained	D	Very limited	Very limited
Butche-Spangler complex, 10 to 30 percent slopes	28K	Excessively drained	D	Very limited	Very limited
Larkson, dry-Lakoa loams, 10 to 60 percent slopes	25K	Well drained	C	Very limited	Very limited
Bidman-Bone loams, 0 to 2 percent slopes	24K	Well drained	C	Very limited	Somewhat limited
Louviers-Rock outcrop complex, 3 to 30 percent slopes	23K	Well drained	D	Very limited	Very limited
Rock outcrop-Vanocker, dry complex, 40 to 75 percent slopes	23K	Well drained	D	Very limited	Very limited
Tollflat-Hickok loams, 3 to 10 percent slopes	21K	Well drained	C	Somewhat limited	Very limited
Tassel-Shingle complex, 10 to 30 percent slopes	20K	Well drained	D	Very limited	Very limited
Samsil-Gaynor complex, 2 to 10 percent slopes	20K	Well drained	D	Very limited	Very limited
Cromack-Echeta-Leiter complex, 6 to 10 percent slopes	19K	Well drained	D	Very limited	Very limited
Butche-Spangler complex, 3 to 10 percent slopes	19K	Excessively drained	D	Very limited	Very 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.

Aridisols

Dry-climate soils with low organic matter. Often have caliche layers that make excavation difficult. Low shrink-swell is good for foundations.

Alfisols

Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

What This Means

Building & Foundations

About 92% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes. A geotechnical assessment is recommended before building.

Septic Systems

About 92% 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.