Soil survey area

Bayfield County, Wisconsin

Survey Area WI007• Wisconsin
The short version

The most common soil here is Vilas, on about 9% of the land: a loamy sand, gritty and loose. Rubicon and Gogebic come next.

About 42% of the land drains well, and 11% stays wet for long stretches; groundwater comes within two feet of the surface under 49% of it.

USDA rates 91% of the land very limited for a standard septic drain field, and 66% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 3% of the land floods occasionally or more, and bedrock lies within 40 inches under 2% 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 ground underfoot

The soils you're most likely standing on

The biggest named soils in Bayfield County, Wisconsin, each drawn five feet deep from its official USDA description, in its recorded colors.

Vilas
9% of the area
Loamy sand topsoil · well drained
Gritty and loose. Water runs straight through it.
Spodosols
Rubicon
8% of the area
Sand topsoil · excessively drained
Loose sand that holds almost no water.
Spodosols
Gogebic
6% of the area
Sandy loam topsoil · moderately well drained
Gritty and crumbly. Drains fast and warms early in spring.
Spodosols
Sultz
4% of the area
Sand topsoil · well drained
Loose sand that holds almost no water.
Spodosols
Keweenaw
4% of the area
Loamy sand topsoil · well drained
Gritty and loose. Water runs straight through it.
Spodosols
Portwing
4% of the area
Silt loam topsoil · moderately well drained
Smooth, like flour. Fertile and holds water well.
Alfisols

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 A (high infiltration, low runoff). The most common soil order is Spodosols — acidic forest soils with a distinctive leached layer, common under conifers. 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 Bayfield County, Wisconsin. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Portwing-Herbster complex, 0 to 6 percent slopes 73K Moderately well drainedC/DVery limitedVery limited
Rubicon sand, 0 to 6 percent slopes 42K Excessively drainedANot limitedVery limited
Vilas loamy sand, 6 to 15 percent slopes 42K Excessively drainedASomewhat limitedVery limited
Amnicon-Cuttre complex, 0 to 4 percent slopes 36K Moderately well drainedDVery limitedVery limited
Gogebic fine sandy loam, 1 to 6 percent slopes, stony 33K Moderately well drainedDVery limitedVery limited
Vilas loamy sand, 0 to 6 percent slopes 33K Excessively drainedANot limitedVery limited
Sanborg-Badriver complex, 0 to 6 percent slopes 32K Moderately well drainedC/DVery limitedVery limited
Gogebic, very stony-Pence, very stony-Cathro complex, 0 to 18 percent slopes 32K Moderately well drainedDVery limitedVery limited
Udorthents, ravines and escarpments, 25 to 60 percent slopes 26K Not ratedNot rated
Kellogg-Allendale-Ashwabay complex, 2 to 6 percent slopes 26K Moderately well drainedC/DVery limitedVery limited
Water 24K Not ratedNot rated
Sultz sand, 6 to 15 percent slopes 23K Well drainedASomewhat limitedSomewhat limited
Lupton, Cathro, and Tawas soils, 0 to 1 percent slopes 22K Very poorly drainedA/DVery limitedVery limited
Cublake-Croswell-Ashwabay complex, 0 to 6 percent slopes 20K Moderately well drainedAVery limitedVery limited
Vilas loamy sand, 15 to 30 percent slopes 19K Excessively drainedAVery limitedVery limited
Rubicon sand, 6 to 15 percent slopes 16K Excessively drainedASomewhat limitedVery limited
Kellogg-Allendale-Ashwabay complex, 6 to 15 percent slopes 15K Moderately well drainedC/DVery limitedVery limited
Padus-Pence-Keweenaw complex, 15 to 30 percent slopes, stony 15K Well drainedAVery limitedVery limited
Superior-Sedgwick complex, 0 to 6 percent slopes 15K Moderately well drainedDVery limitedVery limited
Keweenaw-Pence complex, 6 to 15 percent slopes, stony 12K Well drainedASomewhat limitedVery 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.

Spodosols
Acidic forest soils with a leached layer. Common under conifers. Often have drainage issues from a compacted subsoil layer.
Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

What This Means

Building & Foundations

About 66% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas. A geotechnical assessment is recommended before building.

Septic Systems

About 91% 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.

Look Up a Specific Address

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