Fremont County Area, Colorado

Survey Area CO637• Colorado

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 Entisols — young soils with little profile development, often on floodplains or steep slopes. 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 Fremont County Area, Colorado. 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
Ustic Torriorthents, bouldery-Rock outcrop complex, 35 to 90 percent slopes	81K	Well drained	D	Very limited	Very limited
Boyle very gravelly sandy loam, 10 to 40 percent slopes	46K	Well drained	D	Very limited	Very limited
Boyle-Rock outcrop complex, 40 to 60 percent slopes	38K	Well drained	D	Very limited	Very limited
Rogert very gravelly sandy loam, warm, 15 to 40 percent slopes	25K	Well drained	D	Very limited	Very limited
Ustic Torriorthents-Sedillo complex, 15 to 40 percent slopes	24K	Well drained	C	Very limited	Very limited
Coaldale very gravelly sandy loam, 20 to 45 percent slopes	22K	Well drained	D	Very limited	Very limited
Travessilla-Rock outcrop complex, 5 to 50 percent slopes	18K	Well drained	D	Very limited	Very limited
Resort very gravelly sandy loam, 20 to 45 percent slopes	15K	Somewhat excessively drained	D	Very limited	Very limited
Bushvalley cobbly loam, 5 to 40 percent slopes	14K	Well drained	D	Very limited	Very limited
Cathedral-Rock outcrop complex, 45 to 80 percent slopes	14K	Well drained	D	Very limited	Very limited
Ess-Bushvalley complex, 10 to 45 percent slopes	13K	Well drained	C	Very limited	Very limited
Roygorge very gravelly sandy clay loam, 25 to 50 percent slopes	13K	Well drained	D	Very limited	Very limited
Wetmore-Rock outcrop complex, 40 to 80 percent slopes	13K	Well drained	D	Very limited	Very limited
Penrose-Minnequa complex, 1 to 15 percent slopes	13K	Well drained	D	Very limited	Very limited
Haploborolls, very stony-Rock outcrop complex, 40 to 90 percent slopes	13K	Well drained	D	Very limited	Very limited
Martinsdale sandy loam, 3 to 12 percent slopes	12K	Well drained	C	Not limited	Very limited
Granile-Guffey very gravelly sandy loams, 25 to 50 percent slopes	12K	Well drained	B	Very limited	Very limited
Wetmore-Bundo, dry-Rock outcrop complex, 35 to 75 percent slopes	12K	Well drained	D	Very limited	Very limited
Seitz gravelly fine sandy loam, 20 to 40 percent slopes	12K	Well drained	C	Very limited	Very limited
Bushvalley-Whiteman cobbly loams, 15 to 50 percent slopes	12K	Well 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.

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.

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 97% 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 100% 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.