Soil survey area

Cochetopa Area, Colorado, Parts of Gunnison, Hinsdale, and Saguache Counties

Survey Area CO663• Colorado
The short version

The most common soil here is Goosepeak, on about 17% of the land: a extremely gravelly sandy loam, gritty and crumbly. Seitz and Tellura come next.

About 88% of the land drains well.

USDA rates 98% of the land very limited for a standard septic drain field, and 98% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: bedrock lies within 40 inches under 50% 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 Cochetopa Area, Colorado, Parts of Gunnison, Hinsdale, and Saguache Counties, each drawn five feet deep from its official USDA description, in its recorded colors.

Goosepeak
17% of the area
Extremely gravelly sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Seitz
11% of the area
Well drained
Alfisols
Tellura
6% of the area
Clay loam topsoil · well drained
Firm and a little sticky. Holds water and nutrients well.
Mollisols
Snowdon
5% of the area
Very stony loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Alfisols
Quander
5% of the area
Loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Mollisols
Leighcan
5% of the area
Very stony sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Inceptisols

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 C (slow infiltration, moderate 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 Cochetopa Area, Colorado, Parts of Gunnison, Hinsdale, and Saguache Counties. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Goosepeak, cool-Seitz complex, 5 to 25 percent slopes 88K Well drainedCVery limitedVery limited
Goosepeak-Snowdon, dry-Rock outcrop complex, 15 to 65 percent slopes 67K Well drainedDVery limitedVery limited
Ohman-Perfecto complex, 25 to 65 percent slopes 31K Somewhat excessively drainedBVery limitedVery limited
Tellura, moist-Quander complex, 5 to 25 percent slopes 30K Well drainedCVery limitedVery limited
Perfecto-Ohman-Legault complex, 25 to 65 percent slopes, very bouldery 23K Somewhat excessively drainedBVery limitedVery limited
Leighcan gravelly sandy loam, 5 to 25 percent slopes 19K Well drainedAVery limitedVery limited
Rock outcrop and Rubble land 17K DVery limitedVery limited
Moran, extremely stony-Telluride, extremely stony-Rock outcrop complex, 5 to 40 percent slopes 16K Well drainedDVery limitedVery limited
Quander, cool-Bushpark-Rock outcrop complex, 15 to 45 percent slopes 16K Well drainedDVery limitedVery limited
Seitz gravelly sandy clay loam, 15 to 65 percent slopes 15K Well drainedCVery limitedVery limited
Storm family very cobbly sandy clay loam, 10 to 65 percent slopes 12K Well drainedBVery limitedVery limited
Goosepeak, cool-Snowdon complex, 25 to 65 percent slopes 12K Well drainedCVery limitedVery limited
Leighcan-Rubble land complex, 25 to 120 percent slopes 12K Well drainedAVery limitedVery limited
Cryolls-Cryaquolls association, 0 to 15 percent slopes 11K Moderately well drainedCVery limitedVery limited
Tellura very gravelly clay loam, dry, 15 to 65 percent slopes, very bouldery 10K Well drainedCVery limitedVery limited
Rock outcrop-Telluride association, 40 to 120 percent slopes, extremely stony 10K DNot ratedNot rated
Moran cobbly loam, moist, 5 to 25 percent slopes, very stony 10K Moderately well drainedBVery limitedVery limited
Seitz-Rock outcrop complex, 25 to 65 percent slopes 9K Well drainedCVery limitedVery limited
Goosepeak-Perfecto, warm complex, 15 to 65 percent slopes 8K Well drainedCVery limitedVery limited
Quander very gravelly loam, dry, 5 to 25 percent slopes 8K Well drainedBVery 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.

Mollisols
Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.
Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.
Inceptisols
Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.
Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

What This Means

Building & Foundations

About 98% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 98% 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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