Toiyabe National Forest Area, California

Survey Area CA729• California

The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). 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 Toiyabe National Forest Area, California. 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
Lithnip-Rock outcrop-Fishsnooze complex, 30 to 75 percent slopes	66K	Somewhat excessively drained	D	Very limited	Very limited
Toiyabe-Corbett-Rock outcrop complex, 30 to 50 percent slopes	35K	Excessively drained	D	Very limited	Very limited
Whittell-Jobsis-Rock outcrop complex, 30 to 75 percent slopes	28K	Somewhat excessively drained	A	Very limited	Very limited
Joecut-Heenlake association	22K	Well drained	C	Very limited	Very limited
Hawkinspeak-Thiefridge-Angelwhine association	19K	Well drained	C	Very limited	Very limited
Florand-Lostridge-Fishsnooze association	19K	Well drained	B	Very limited	Very limited
Dab-Longday-Thiefridge association	18K	Well drained	B	Very limited	Very limited
Sofgran-Temo-Shalgran association	15K	Somewhat excessively drained	D	Very limited	Very limited
Heenlake-Loope-Chenhigh association	15K	Well drained	D	Very limited	Very limited
Hardnut-Ocashe association	14K	Well drained	D	Very limited	Very limited
Lithnip-Hawkinspeak-Rock outcrop complex, 30 to 75 percent slopes	13K	Well drained	D	Very limited	Very limited
Murain association	13K	Well drained	A	Very limited	Very limited
Sofgran-Klauspeak-Temo association	11K	Somewhat excessively drained	A	Very limited	Very limited
Leroman-Chenhigh-Celeridge association	11K	Well drained	C	Very limited	Very limited
Burchflat-Celeridge-Loope association	11K	Well drained	C	Very limited	Very limited
Burchflat-Loope association	10K	Well drained	C	Very limited	Very limited
Delhew-Grandridge-Bakscratch association	10K	Well drained	D	Very limited	Very limited
Granylith-Hargran-Rock outcrop complex, 8 to 30 percent slopes	9K	Moderately well drained	D	Very limited	Very limited
Toejom-Pimogran-Rock outcrop association	9K	Excessively drained	D	Very limited	Very limited
Burnlake-Roadcat association	9K	Well drained	A	Very 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.

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Alfisols

Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

Inceptisols

Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

What This Means

Building & Foundations

About 100% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes. A geotechnical assessment is recommended before building.

Septic Systems

About 100% 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.