Canyonlands National Park, Utah
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 National Park, Utah.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Rock outcrop-Tsaya complex, 15 to 60 percent slopes, extremely bouldery | 53K | D | Not rated | Not rated | |
| Rock outcrop-Arches complex, 2 to 60 percent slopes | 51K | D | Not rated | Not rated | |
| Tsaya family-Moenkopie complex, 2 to 15 percent slopes | 30K | Well drained | D | Very limited | Very limited |
| Rock outcrop-Arches complex, 2 to 15 percent slopes | 25K | D | Not rated | Not rated | |
| Arches-Mido-Rock outcrop complex, 2 to 15 percent slopes | 21K | D | Not rated | Not rated | |
| Torriorthents-Rock outcrop complex, 35 to 70 percent slopes, extremely bouldery | 19K | Well drained | B | Very limited | Very limited |
| Mathis family-Rock outcrop-Rizno complex, 15 to 70 percent slopes, extremely bouldery | 11K | Somewhat excessively drained | D | Very limited | Very limited |
| Torriorthents-Rock outcrop-Badland complex, 4 to 70 percent slopes, extremely boudery | 11K | Well drained | B | Not rated | Not rated |
| Rizno-Rock outcrop complex, 1 to 25 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Mido-Begay complex, 0 to 6 percent slopes | 10K | Excessively drained | A | Not limited | Very limited |
| Reef-Rock outcrop complex, 30 to 60 percent slopes, extremely bouldery | 10K | Somewhat excessively drained | D | Very limited | Very limited |
| Sazi-Rizno complex, 2 to 15 percent slopes | 10K | Well drained | B | Very limited | Very limited |
| Mido-Batterson-Rock outcrop complex, 2 to 15 percent slopes | 9K | Excessively drained | D | Not limited | Very limited |
| Arches-Rock outcrop complex, 2 to 15 percent slopes | 7K | Excessively drained | D | Very limited | Very limited |
| Rock outcrop-Needle complex, 2 to 30 percent slopes | 7K | D | Not rated | Not rated | |
| Rock outcrop-Torriorthents complex, 20 to 65 percent slopes, extremely bouldery | 6K | D | Not rated | Not rated | |
| Water | 5K | D | Not rated | Not rated | |
| Reef-Rock outcrop complex, 2 to 30 percent slopes | 4K | Well drained | D | Very limited | Very limited |
| Rizno-Ignacio complex, 2 to 15 percent slopes | 4K | Well drained | D | Very limited | Very limited |
| Rock outcrop-Nalcase complex, 2 to 15 percent slopes | 4K | D | Not rated | Not rated |
What This Means
Building & Foundations
About 34% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 40% 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.