Oak Creek-San Francisco Peaks Area, Arizona, Part of Coconino County

Survey Area AZ693• Arizona

The dominant drainage class is Well drained and the dominant hydrologic group is C (slow infiltration, moderate 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 Oak Creek-San Francisco Peaks Area, Arizona, Part of Coconino County. 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
Vertic Haplustalfs, Vertic Paleustalfs, and Typic Argiustolls; cool mesic ustic plateaus	296K	Well drained	C	Very limited	Very limited
Vertic Haplustalfs, Aridic Haplustalfs, and Lithic Argiustolls; warm mesic aridic fan remnants and hills	197K	Well drained	C	Somewhat limited	Very limited
Pachic Argiustolls, Typic Haplustalfs, and Lithic Haplustepts; cool mesic ustic mountains	149K	Well drained	C	Very limited	Very limited
Lithic Argiustolls, Typic Haplustolls, and Vitrandic Haplustolls; cool mesic ustic mountains	64K	Well drained	D	Very limited	Very limited
Aridic Argiustolls, Cumulic Haplustolls, rarely flooded, and Aridic Ustifluvents, rarely flooded; cool mesic ustic hills and fans	53K	Well drained	C	Very limited	Very limited
Lithic Argiustolls, Cumulic Haplustolls, rarely flooded, and Typic Ustorthents; warm mesic ustic mountains	51K	Well drained	C	Very limited	Very limited
Ustic Haplocalcids, Ustic Haplocambids, rarely flooded, and Typic Torripsamments, rarely flooded; cool thermic aridic alluvial fans	7K	Well drained	B	Very limited	Very limited
Tortugas-Daze complex, 0 to 15 percent slopes	6K	Well drained	D	Very limited	Very limited
Daze fine sandy loam, 0 to 8 percent slopes	6K	Well drained	D	Very limited	Very limited
Lithic Argiustolls, Typic Haplustolls, and Aridic Calciustolls; warm mesic ustic mountains	4K	Well drained	D	Very limited	Very limited
Brolliar cobbly clay loam, deep variant, 0 to 5 percent slopes	3K	Well drained	C	Very limited	Very limited
Telephone-Daze complex, 0 to 8 percent slopes	3K	Well drained	D	Very limited	Very limited
Boysag gravelly loam, 0 to 8 percent slopes	3K	Well drained	D	Very limited	Very limited
Tortugas cobbly loam, 2 to 15 percent slopes	2K	Well drained	D	Very limited	Very limited
Brolliar stony clay loam, 2 to 8 percent slopes	2K	Well drained	D	Very limited	Very limited
Brolliar stony clay loam, 0 to 2 percent slopes	2K	Well drained	D	Very limited	Very limited
Lynx loam, 0 to 2 percent slopes	2K	Well drained	B	Very limited	Very limited
Brolliar stony clay loam, 8 to 30 percent slopes	2K	Well drained	D	Very limited	Very limited
Telephone gravelly sandy loam, 0 to 15 percent slopes	2K	Well drained	D	Very limited	Very limited
Baldy stony loam, 2 to 8 percent slopes	2K	Well drained	B	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.

Mollisols

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

Entisols

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

Aridisols

Dry-climate soils with low organic matter. Often have caliche layers that make excavation difficult. Low shrink-swell is good for foundations.

Inceptisols

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

What This Means

Building & Foundations

About 76% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. 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.