Soil survey area

Nye County, Nevada, Southwest Part

Survey Area NV785• Nevada
The short version

The most common soil here is Yermo, on about 15% of the land: a cobbly sandy loam, gritty and crumbly. Arizo and Commski come next.

About 92% of the land drains well, and 3% stays wet for long stretches; groundwater comes within two feet of the surface under 3% of it.

USDA rates 65% of the land very limited for a standard septic drain field, and 53% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 2% of the land floods occasionally or more, and bedrock lies within 40 inches under 29% 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 Nye County, Nevada, Southwest Part, each drawn five feet deep from its official USDA description, in its recorded colors.

Yermo
15% of the area
Cobbly sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Entisols
Arizo
5% of the area
Very gravelly fine sand topsoil · excessively drained
Loose sand that holds almost no water.
Entisols
Commski
4% of the area
Very gravelly fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Aridisols
Sanwell
3% of the area
Gravelly fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Entisols
Greyeagle
3% of the area
Very stony loam topsoil · somewhat excessively drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Aridisols
Skelon
2% of the area
Gravelly sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Aridisols

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 A (high infiltration, low runoff). The most common soil order is Aridisols — dry-climate soils with limited organic matter and often calcium carbonate accumulation. 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 Nye County, Nevada, Southwest Part. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Yermo, hot-Yermo-Arizo association 131K Well drainedANot limitedNot limited
Yermo-Greyeagle association 38K Well drainedANot limitedNot limited
Rock outcrop-St. Thomas association 35K DNot ratedNot rated
St. Thomas-Rock outcrop-Commski association 24K Well drainedDVery limitedVery limited
Skelon-Yermo-Pinez complex, 0 to 4 percent slopes 24K Well drainedASomewhat limitedVery limited
Sanwell-Sanwell, warm-Yermo association 23K Well drainedBNot limitedSomewhat limited
Gabbvally-Upspring-Rubble land association 22K Well drainedDVery limitedVery limited
Weiser-Canoto association 20K Well drainedANot limitedNot limited
Playas 20K Poorly drainedVery limitedVery limited
Zalda-Greyeagle-Upspring association 20K Well drainedDVery limitedVery limited
Tecopa-Zibate-Rock outcrop association 19K Well drainedDVery limitedVery limited
Besherm clay loam 19K Well drainedCVery limitedVery limited
Rock outcrop-Upspring-Rubble land complex, 8 to 75 percent slopes 19K DVery limitedVery limited
Yermo-Skelon association 17K Well drainedANot limitedNot limited
Zibate-Zyplar-Dedas association 17K Well drainedDVery limitedVery limited
Yermo-Commski association 16K Well drainedANot limitedNot limited
Zibate-Rock outcrop complex, 15 to 50 percent slopes 16K Well drainedDVery limitedVery limited
St. Thomas-Tecopa-Rock outcrop complex, 15 to 75 percent slopes 16K Well drainedDVery limitedVery limited
Arizo very gravelly sandy loam, moist, 0 to 2 percent slopes 16K Excessively drainedAVery limitedVery limited
Commski-Lastchance association 15K Well drainedBNot limitedSomewhat 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.

Aridisols
Dry-climate soils with low organic matter. Often have caliche layers that make excavation difficult. Low shrink-swell is good for foundations.
Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

What This Means

Building & Foundations

About 53% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 65% 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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