Big Stone County, Minnesota
The most common soil here is Aazdahl, on about 10% of the land: a clay loam, firm and a little sticky. Hattie and Flom come next.
About 21% of the land drains well, and 41% stays wet for long stretches; groundwater comes within two feet of the surface under 62% of it.
USDA rates 82% of the land very limited for a standard septic drain field, and 65% 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.
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 Big Stone County, Minnesota, 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 Moderately well drained and the dominant hydrologic group is C/D (varies with drainage). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. 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 Big Stone County, Minnesota. 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 |
|---|---|---|---|---|---|
| Aazdahl-Formdale-Balaton clay loams, 0 to 4 percent slopes | 38K | Moderately well drained | C | Somewhat limited | Very limited |
| Flom-Aazdahl-Hamerly complex, 0 to 2 percent slopes | 30K | Poorly drained | C/D | Very limited | Very limited |
| Esmond-Heimdal-Sisseton complex, 2 to 6 percent slopes | 30K | Well drained | B | Not limited | Somewhat limited |
| Hattie silty clay, 1 to 4 percent slopes | 25K | Moderately well drained | D | Very limited | Very limited |
| Fram-Vallers-Parnell complex | 20K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Aazdahl-Balaton clay loams, 0 to 2 percent slopes | 18K | Moderately well drained | C | Very limited | Very limited |
| Water | 16K | Not rated | Not rated | ||
| Quam and Cathro soils, 0 to 1 percent slopes, frequently ponded | 11K | Very poorly drained | C/D | Very limited | Very limited |
| Bigstone silty clay loam, ponded | 10K | Very poorly drained | C/D | Very limited | Very limited |
| Fulda silty clay, 0 to 2 percent slopes | 10K | Poorly drained | C/D | Very limited | Very limited |
| Esmond-Sisseton-Heimdal, complex, 2 to 12 percent slopes, moderately eroded | 10K | Well drained | B | Somewhat limited | Somewhat limited |
| Fram loam, 1 to 4 percent slopes | 8K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Svea loam, 1 to 3 percent slopes | 7K | Moderately well drained | C | Very limited | Very limited |
| Lamoure silty clay loam, 0 to 2 percent slopes, occasionally flooded | 6K | Poorly drained | C/D | Very limited | Very limited |
| Rauville silty clay loam, 0 to 2 percent slopes, frequently flooded | 6K | Very poorly drained | C/D | Very limited | Very limited |
| Flom-Hamerly complex, 0 to 2 percent slopes | 6K | Poorly drained | C/D | Very limited | Very limited |
| Vallers clay loam, 0 to 2 percent slopes | 5K | Poorly drained | C/D | Very limited | Very limited |
| Lindaas silty clay loam | 4K | Poorly drained | C/D | Very limited | Very limited |
| Gonvick loam, 1 to 4 percent slopes | 4K | Moderately well drained | C/D | Very limited | Very limited |
| Hokans-Svea-Buse complex, 2 to 12 percent slopes | 4K | Well drained | C | Somewhat 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 65% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
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.