Custer County Area, Colorado
The dominant drainage class is Well drained and the dominant hydrologic group is A (high infiltration, low runoff). 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 Custer County Area, Colorado.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Rogert-Woodhall extremely cobbly sandy loams, 20 to 45 percent | 20K | Well drained | D | Very limited | Very limited |
| Redfeather-Rock outcrop complex, 5 to 35 percent slopes | 20K | Well drained | D | Very limited | Very limited |
| Feltonia sandy loam, 2 to 6 percent slopes | 19K | Well drained | A | Not limited | Very limited |
| Feltonia-Coutis sandy loams, 6 to 15 percent slopes | 16K | Well drained | A | Somewhat limited | Very limited |
| Granile-Peeler complex, 25 to 50 percent slopes | 13K | Well drained | B | Very limited | Very limited |
| Troutdale-Rogert complex, 5 to 15 percent slopes | 12K | Well drained | C | Somewhat limited | Very limited |
| Gelkie sandy loam, 1 to 10 percent slopes | 12K | Well drained | B | Not limited | Very limited |
| Coutis sandy loam, 5 to 15 percent slopes | 12K | Well drained | A | Somewhat limited | Very limited |
| Norriston very cobbly sandy loam, 2 to 6 percent slopes | 12K | Well drained | A | Somewhat limited | Very limited |
| Woodhall-Rogert extremely cobbly sandy loams, 5 to 20 percent | 11K | Well drained | C | Very limited | Very limited |
| Lamphier loam, 4 to 20 percent slopes | 9K | Well drained | B | Somewhat limited | Somewhat limited |
| Libeg extremely cobbly sandy loam, 5 to 20 percent slopes | 9K | Well drained | B | Very limited | Very limited |
| Alvarado very cobbly sandy loam, 2 to 5 percent slopes | 8K | Somewhat poorly drained | C | Very limited | Very limited |
| Coutis sandy loam, 2 to 5 percent slopes | 8K | Well drained | A | Not limited | Very limited |
| Boyle-Rock outcrop complex, warm, 25 to 55 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Rogert-Rock outcrop complex, 20 to 45 percent slopes | 6K | Well drained | D | Very limited | Very limited |
| Venable loam, 1 to 4 percent slopes | 6K | Poorly drained | B/D | Very limited | Very limited |
| Boyle very gravelly sandy loam, warm, 4 to 25 percent slopes | 6K | Well drained | D | Very limited | Very limited |
| Silvercliff cobbly sandy loam, 15 to 35 percent slopes | 5K | Well drained | A | Very limited | Very limited |
| Wix sandy loam, 3 to 25 percent slopes | 5K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 51% 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 95% 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.