Roosevelt and Daniels Counties, Montana
The dominant drainage class is Well drained and the dominant hydrologic group is C (slow infiltration, moderate 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 Roosevelt and Daniels Counties, Montana.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Vida-Zahill loams, 2 to 8 percent slopes | 480K | Well drained | C | Not limited | Very limited |
| Turner sandy loam, 2 to 8 percent slopes | 161K | Well drained | B | Not limited | Very limited |
| Williams-Vida loams, 2 to 8 percent slopes | 154K | Well drained | C | Not limited | Very limited |
| Zahill-Vida loams, 4 to 15 percent slopes | 148K | Well drained | C | Somewhat limited | Very limited |
| Farland-Cherry silt loams, 2 to 8 percent slopes | 108K | Well drained | C | Somewhat limited | Very limited |
| Dooley sandy loam, 0 to 4 percent slopes | 92K | Well drained | C | Somewhat limited | Very limited |
| Farnuf loam, 2 to 8 percent slopes | 90K | Well drained | B | Somewhat limited | Somewhat limited |
| Turner-Beaverton complex, 2 to 8 percent slopes | 85K | Well drained | B | Not limited | Very limited |
| Zahill-Tinsley complex, 15 to 45 percent slopes | 73K | Well drained | C | Very limited | Very limited |
| Zahill loam, 15 to 60 percent slopes | 71K | Well drained | C | Very limited | Very limited |
| Zahill-Cabba-Cambert complex, 15 to 45 percent slopes | 54K | Well drained | C | Very limited | Very limited |
| Typic Ustifluvents, 0 to 2 percent slopes | 52K | Not rated | Not rated | ||
| Cabba-Cambert-Cherry silt loams, 8 to 15 percent slopes | 52K | Well drained | C | Somewhat limited | Very limited |
| Farland silt loam, 2 to 8 percent slopes | 42K | Well drained | B | Somewhat limited | Somewhat limited |
| Cherry silt loam, 2 to 8 percent slopes | 38K | Well drained | C | Somewhat limited | Very limited |
| Turner-Beaverton complex, 8 to 15 percent slopes | 37K | Well drained | B | Somewhat limited | Very limited |
| Tally-Lihen sandy loams, 1 to 8 percent slopes | 37K | Well drained | A | Not limited | Very limited |
| Tally sandy loam, 2 to 8 percent slopes | 36K | Well drained | A | Not limited | Very limited |
| Cabba-Cambert silt loams, 15 to 45 percent slopes | 32K | Well drained | D | Very limited | Very limited |
| Cabba-Cambert-Rock outcrop complex, 15 to 45 percent slopes | 30K | Well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
Most soils are generally favorable for residential construction. Standard foundations are usually viable, though site-specific evaluation is always recommended.
Septic Systems
About 90% 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.