Natrona County Area, Wyoming
The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high 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 Natrona County Area, Wyoming.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Hiland sandy loam, 0 to 6 percent slopes | 110K | Well drained | B | Not limited | Not limited |
| Theedle-Shingle-Kishona complex, 6 to 40 percent slopes, gullied | 105K | Well drained | C | Very limited | Very limited |
| Keyner-Absted-Slickspots complex, 0 to 6 percent slopes | 90K | Well drained | B | Not limited | Not limited |
| Orpha loamy sand, 10 to 30 percent slopes | 87K | Excessively drained | A | Very limited | Very limited |
| Blackdraw-Gullied land-Lolite complex, 3 to 20 percent slopes | 78K | Well drained | D | Very limited | Very limited |
| Rock outcrop-Shingle-Rubble land complex, 30 to 100 percent slopes | 76K | Well drained | D | Very limited | Very limited |
| Arvada-Absted-Slickspots complex, 0 to 6 percent slopes | 70K | Well drained | D | Somewhat limited | Not limited |
| Vonalee-Hiland complex, 3 to 15 percent slopes | 69K | Well drained | A | Somewhat limited | Very limited |
| Bowbac-Hiland fine sandy loams, 3 to 10 percent slopes | 67K | Well drained | B | Somewhat limited | Very limited |
| Amodac-Keyner complex, 2 to 12 percent slopes | 66K | Well drained | C | Somewhat limited | Very limited |
| Shingle-Taluce-Badland complex, 10 to 40 percent slopes | 65K | Well drained | D | Very limited | Very limited |
| Lolite-Badland complex, 10 to 40 percent slopes | 63K | Well drained | D | Very limited | Very limited |
| Bowbac-Taluce-Terro complex, 6 to 20 percent slopes | 62K | Well drained | C | Somewhat limited | Very limited |
| Ryan Park loamy sand, 2 to 10 percent slopes | 61K | Well drained | C | Not limited | Very limited |
| Cushman-Forkwood complex, 3 to 15 percent slopes | 58K | Well drained | C | Somewhat limited | Very limited |
| Forkwood-Zigweid complex, 3 to 15 percent slopes | 50K | Well drained | B | Not limited | Somewhat limited |
| Rock outcrop-Cathedral complex, 10 to 50 percent slopes | 44K | Well drained | D | Very limited | Very limited |
| Haverdad-Clarkelen complex, saline, 0 to 3 percent slopes | 42K | Well drained | B | Very limited | Somewhat limited |
| Neldore-Moyerson-Rock outcrop complex, 10 to 30 percent slopes | 41K | Well drained | D | Very limited | Very limited |
| Cadoma-Renohill-Samday clay loams, 3 to 12 percent slopes | 40K | Well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 47% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 73% 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.