LOCATION WHISKEY                 AZ

Established Series
Rev. WJ/NLM/PDC
10/2013

WHISKEY SERIES

The Whiskey series consists of very deep, well drained soils on stream terraces. These soils formed in mixed alluvium. Slope is 1 to 4 percent. The mean annual precipitation is about 16 inches and the mean annual air temperature is about 50 degrees F.

TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Pachic Haplustolls

TYPICAL PEDON: Whiskey silt loam - rangeland. (Colors are for dry soil unless otherwise noted).

A--0 to 5 inches; brown (7.5YR 5/4) silt loam, dark brown (7.5YR 3/3) moist; moderate fine granular structure; slightly hard, very friable, slightly plastic; many very fine roots; many very fine tubular pores; slightly effervescent; 2 percent gravel; moderately alkaline (pH 8.0); abrupt wavy boundary. (4 to 8 inches thick)

Bw--5 to 13 inches; brown (7.5YR 4/4) loam, dark brown (7.5YR 3/3) moist; moderate very fine subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; many fine roots; many fine tubular pores; slightly effervescent; 2 percent gravel; moderately alkaline (pH 8.0); clear wavy boundary. (5 to 10 inches thick)

Bk--13 to 32 inches; brown (7.5YR 4/4) loam, dark brown (7.5YR 3/3) moist; medium fine subangular structure; slightly hard, very friable, slightly sticky and slightly plastic; common medium roots; many fine tubular pores; strongly effervescent, few fine lime filaments and threads, 9 percent calcium carbonate equivalent; 5 percent gravel; moderately alkaline (pH 8.2); gradual wavy boundary. (0 to 20 inches thick)

C--32 to 60 inches; brown (7.5YR 4/4) loam, dark brown (7.5YR 3/3) moist; massive; slightly hard, very friable, slightly sticky and slightly plastic; many fine roots; many fine tubular pores; strongly effervescent; 10 percent gravel; moderately alkaline (pH 8.2).

TYPE LOCATION: Mohave County, Arizona; about 4 miles northeast of Mount Trumbull; 1,600 feet south and 100 feet west of the northeast corner of section 6, T. 35 N., R. 7 W.

RANGE IN CHARACTERISTICS:

Soil Moisture - Intermittently moist in some part of the soil moisture control section during July-September and December-February. Driest during May and June. Aridic ustic soil moisture regime.

Soil Temperature - 48 to 54 degrees F.

Organic matter - 1 to 3 percent, decreasing regularly with depth

Reaction - neutral through moderately alkaline

Clay content - ranges from 7 to 27 percent, averaging more than 18 percent in the control section

Rock Fragments - averages less than 15 percent

Carbonates- less than 10 percent calcium carbonate equivalent; disseminated or segregated, in any one horizon

A horizon
Hue: 7.5YR, 10YR
Value: 4 or 5 dry, 3 moist
Chroma: 3 or 4 dry, 2 or 3 moist

B horizon
Hue: 7.5YR, 10YR
Value: 4 or 5 dry, 3 or 4 moist
Chroma: 3 or 4 dry, 2 or 3 moist
Texture: loam, silt loam

C horizon
Hue: 7.5YR, 10YR
Value: 4 or 5 dry, 3 or 4 moist
Chroma: 3 or 4 dry, 2 to 4 moist
Texture: loam, silt loam

COMPETING SERIES: These are the Bonilla (SD), Davis (SD) and Table Mountain (CO) series. The Bonilla and Davis soils are moist more than half the time that the soil temperature is 41 degrees F., or higher. The Table Mountain soils have peak periods of precipitation in the spring and early summer.

GEOGRAPHIC SETTING: Whiskey soils are on stream terraces at elevations of 5,800 to 7,000 feet.
They formed in mixed alluvium. Slopes range from 1 to 4 percent. Mean annual precipitation is 14 to 18 inches. Mean annual air temperature is about 46 to 52 degrees F. The frost-free period is 135 to 150 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Lomaki, Panky, Showlow and Thimble series. Panky, Showlow and Thimble soils are fine textured. Lomaki soils are loamy-skeletal over fragmental.

DRAINAGE AND PERMEABILITY: Well drained; slow runoff; moderate permeability.

USE AND VEGETATION: Used mainly for livestock grazing. Vegetation is mainly blue grama, needleandthread, galleta and juniper.

DISTRIBUTION AND EXTENT: Northern Arizona. This series is of small extent. MLRA 35.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona

SERIES ESTABLISHED: Mohave County, Arizona; Soil survey of Mohave County Area, Arizona, Northeastern Part, and Part of Coconino County; 1992.

REMARKS: Diagnostic horizons and features recognized in this pedon are:

Mollic epipedon - the zone from 0 to 32 inches (A, Bw, Bk horizons)

Pachic feature - mollic epipedon greater than 20 inches thick

Updated for the correlation of Walnut Canyou National Monument, AZ, May 2013, CEM
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National Cooperative Soil Survey
U.S.A.