Sublette County Area, Wyoming
The most common soil here is Jemdilon, on about 4% of the land. Foreright and Jonah come next.
About 84% of the land drains well, and 11% stays wet for long stretches; groundwater comes within two feet of the surface under 10% of it.
USDA rates 82% of the land very limited for a standard septic drain field, and 35% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 4% of the land floods occasionally or more, and bedrock lies within 40 inches under 34% of it.
Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.
The soils you're most likely standing on
The biggest named soils in Sublette County Area, Wyoming, each drawn five feet deep from its official USDA description, in its recorded colors.
Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.
The biggest mapped areas
The dominant drainage class is Well drained and the dominant hydrologic group is C (slow infiltration, moderate runoff). The most common soil order is Alfisols — moderately leached forest soils with a clay-enriched subsoil. 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 Sublette County Area, Wyoming. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Bluemod-Zagplat-Hoofer complex, 1 to 10 percent slopes | 67K | Well drained | C | Somewhat limited | Very limited |
| Jonah-Buckloaf taxadjunct complex, 1 to 4 percent slopes | 59K | Well drained | C | Not limited | Very limited |
| Lauzer-Trudau-Zealot complex, 1 to 8 percent slopes | 52K | Well drained | C | Not limited | Not limited |
| Jemdilon-Foreright-Buddsoft complex, 2 to 15 percent slopes | 47K | Well drained | C | Not limited | Very limited |
| Golphco-Mountairy complex, 4 to 15 percent slopes | 38K | Well drained | C | Not limited | Very limited |
| Jonah-Ravenhole-Buckloaf complex, 1 to 6 percent slopes | 34K | Well drained | B | Not limited | Very limited |
| Alex-Mooseflat complex, 0 to 2 percent slopes | 33K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Kimrush-Lomispark complex, 1 to 4 percent slopes | 31K | Moderately well drained | C | Somewhat limited | Very limited |
| Juel-Sandbranch taxadjunct-Ravenhole complex, 1 to 8 percent slopes | 31K | Well drained | C | Not limited | Somewhat limited |
| Muddybench-Wilhelm complex, 1 to 6 percent slopes | 31K | Well drained | B | Not limited | Very limited |
| Turson clay loam, 0 to 2 percent slopes | 26K | Somewhat poorly drained | C | Very limited | Very limited |
| Jemdilon fine sandy loam, 0 to 4 percent slopes | 25K | Well drained | C | Not limited | Very limited |
| Pointer, rubbly-Willsod, extremely bouldery complex, 2 to 20 percent slopes | 25K | Well drained | A | Very limited | Very limited |
| Yoda-Foreright-Hoofer complex, 1 to 10 percent slopes | 24K | Well drained | C | Somewhat limited | Very limited |
| Sandbranch taxadjunct-Alcova family, complex, 1 to 6 percent slopes | 21K | Well drained | C | Not limited | Very limited |
| Onionspring-Brodie, very stony complex, 2 to 15 percent slopes | 21K | Well drained | C | Somewhat limited | Very limited |
| Buddson-Jemdilon complex, 1 to 6 percent slopes | 21K | Well drained | C | Somewhat limited | Somewhat limited |
| Rileyridge-Hourglass-Calpet complex, 15 to 50 percent slopes | 21K | Well drained | C | Very limited | Very limited |
| Golphco-Chickenhill-Bronec complex, 1 to 6 percent slopes | 20K | Well drained | C | Not limited | Somewhat limited |
| Jemdilon gravelly loam, 1 to 4 percent slopes | 20K | Well drained | C | Not limited | Very limited |
Soil Orders in This Area
The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.
What This Means
Building & Foundations
About 35% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 82% 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
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.