Canyonlands Area, Utah - Parts of Grand and San Juan Counties
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 Canyonlands Area, Utah - Parts of Grand and San Juan Counties.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Rizno-Rock outcrop complex, 3 to 15 percent slopes | 117K | D | Not rated | Not rated | |
| Ustic Torriorthents-Lithic Torriorthents, warm-Rock outcrop complex, 10 to 80 percent slopes | 111K | Well drained | D | Very limited | Very limited |
| Rock outcrop-Rizno, dry complex, 3 to 15 percent slopes | 111K | D | Not rated | Not rated | |
| Rock outcrop | 98K | D | Not rated | Not rated | |
| Rock outcrop-Rizno complex, 3 to 15 percent slopes | 96K | D | Not rated | Not rated | |
| Rizno, dry-Rock outcrop complex, 3 to 15 percent slopes | 96K | D | Not rated | Not rated | |
| Begay-Rock outcrop-Mido complex, 2 to 35 percent slopes | 57K | A | Not rated | Not rated | |
| Bond-Rizno fine sandy loams, 3 to 15 percent slopes | 56K | Well drained | D | Very limited | Very limited |
| Ustic Torriorthents-Ustollic Calciorthids complex, 10 to 60 percent slopes | 50K | Well drained | B | Very limited | Very limited |
| Begay fine sandy loam, 2 to 6 percent slopes | 38K | Well drained | A | Not limited | Not limited |
| Rock outcrop-Moenkopie complex, 3 to 15 percent slopes | 34K | D | Not rated | Not rated | |
| Begay fine sandy loam, moist, 2 to 6 percent slopes | 30K | Well drained | A | Not limited | Not limited |
| Ignacio-Leanto fine sandy loams, 2 to 6 percent slopes | 29K | Well drained | B | Very limited | Very limited |
| Ustic Torriorthents-Ustollic Haplargids complex, 10 to 60 percent slopes | 29K | Well drained | B | Very limited | Very limited |
| Moenkopie-Rock outcrop complex, 1 to 15 percent slopes | 24K | Well drained | D | Very limited | Very limited |
| Cahona fine sandy loam, 2 to 8 percent slopes | 24K | Well drained | C | Not limited | Somewhat limited |
| Mido loamy fine sand, dry, 2 to 8 percent slopes | 22K | Excessively drained | A | Not limited | Very limited |
| Herm-Iles stony loams, 3 to 25 percent slopes | 17K | Well drained | D | Very limited | Very limited |
| Herm-Tomasaki-Falcon complex, 25 to 65 percent slopes | 17K | Well drained | D | Very limited | Very limited |
| Moab very cobbly fine sandy loam, 3 to 30 percent slopes | 13K | Well drained | A | Very limited | Very limited |
What This Means
Building & Foundations
About 32% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 34% of soils have significant septic limitations, while others are more suitable. A perc test is essential — conditions vary across the area.
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.