Routt National Forest Area, Colorado, Parts of Grand, Jackson, Moffat, and Routt Counties
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 Routt National Forest Area, Colorado, Parts of Grand, Jackson, Moffat, and Routt Counties.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Leighcan-Bobtail complex, 15 to 40 percent slopes, very stony | 44K | Well drained | A | Very limited | Very limited |
| Legault-Agneston families, association, 10 to 40 percent slopes, extremely stony | 40K | Somewhat excessively drained | D | Very limited | Very limited |
| Leighcan very stony sandy loam, 10 to 40 percent slopes, very stony | 39K | Well drained | A | Very limited | Very limited |
| Rock outcrop-Redyon, extremely stony complex, 40 to 80 percent slopes | 37K | D | Not rated | Not rated | |
| Agneston-Legault families, association, 10 to 40 percent slopes, extremely stony | 35K | Well drained | C | Very limited | Very limited |
| Finn and Tepete families, 0 to 15 percent slopes | 35K | Very poorly drained | C/D | Very limited | Very limited |
| Leaps-Rhone families, complex, 10 to 35 percent slopes, landslides | 31K | Well drained | C | Very limited | Very limited |
| Leighcan-Lake Janee family-Bigtimber family complex, 1 to 30 percent slopes, very stony | 29K | Well drained | B | Very limited | Very limited |
| Frisco family, very stony-Finn family, very stony-Water complex, 0 to 20 percent slopes | 27K | Well drained | C | Somewhat limited | Very limited |
| Northwater loam, 15 to 40 percent slopes | 24K | Well drained | C | Very limited | Very limited |
| Broad Canyon very gravelly loam, 10 to 40 percent slopes, very stony | 21K | Well drained | B | Very limited | Very limited |
| Leighcan, extremely stony-Water complex, 5 to 25 percent slopes | 18K | Well drained | A | Very limited | Very limited |
| Bupas, extremely stony-Endlich, extremely stony-Tepete family complex, 0 to 25 percent slopes | 18K | Well drained | D | Very limited | Very limited |
| Grenadier taxadjunct, very bouldery-Rock outcrop-Tepete family complex, 0 to 50% slopes | 17K | Well drained | C | Very limited | Very limited |
| Gateview family gravelly sandy loam, 30 to 65 percent slopes, very stony | 16K | Well drained | A | Very limited | Very limited |
| Ovando very stony loamy sand, 15 to 40 percent slopes, very stony | 16K | Somewhat excessively drained | A | Very limited | Very limited |
| Waybe family-Gothic association, 20 to 50 percent slopes | 16K | Well drained | D | Very limited | Very limited |
| Como-Agneston family-Legault family association, 30 to 60 percent slopes, extremely stony | 16K | Somewhat excessively drained | A | Very limited | Very limited |
| Grenadier taxadjunct cobbly loam, 10 to 40 percent slopes | 15K | Well drained | B | Very limited | Very limited |
| Horsethief-Uinta families, complex, 15 to 40 percent slopes, very stony | 14K | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 87% 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 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.