LOCATION HINDU                   AZ

Established Series
Rev. DJP/JLF/PDC/HCD
04/2015

HINDU SERIES

The Hindu series consists of very shallow or shallow, well drained soils on hills and mesas. These soils formed in residuum and colluvium derived dominantly from limestone. Slopes are 5 to 70 percent. The mean annual precipitation is about 8 inches. The mean annual air temperature is about 63 degrees F.

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, calcareous, thermic Lithic Torriorthents

TYPICAL PEDON: Hindu extremely cobbly loam - rangeland. (Colors are for dry soil unless otherwise noted.)

A--0 to 3 inches; light brown (7.5YR 6/3) extremely cobbly loam, brown (7.5YR 4/4) moist; weak thick platy structure parting to weak medium subangular blocky; soft, very friable, nonsticky and nonplastic; many very fine and few fine roots; many very fine and few medium irregular and tubular pores; 40 percent cobble, 40 percent gravel and 10 percent stones; violently effervescent, 26 percent calcium carbonate equivalent; moderately alkaline (pH 8.4); clear wavy boundary. (1 to 3 inches thick)

Bk--3 to 9 inches; light brown (7.5YR 6/4) very gravelly loam, brown (7.5YR 4/4) moist; moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and few fine roots; common very fine tubular pores; 40 percent gravel and 10 percent cobble; common thin calcium carbonate coats on rock fragments and adjacent ped faces; violently effervescent, 31 percent calcium carbonate equivalent; moderately alkaline (pH 8.0); abrupt wavy boundary. (5 to 8 inches thick)

R--9 inches; grey, thin bedded limestone.

TYPE LOCATION: Mohave County, Arizona; about 0.5 miles northwest of the confluence of Hindu and Bridge Canyons on the Hualapai Indian Reservation; 750 feet west of the southeast corner of section 9, T. 27 N., R. 12 W.

RANGE IN CHARACTERISTICS:

Soil Moisture: Intermittently moist in some part of the soil moisture control section during December - February and for more than 20 days cumulative during July - September. Driest period is April through June. Typic aridic soil moisture regime.

Soil Temperature: 59 to 72 degrees F.

Depth to bedrock: 4 to 20 inches

Rock Fragments: 75 to 95 percent fragments on the surface; 35 to 75 percent in the control section. Commonly, at least half of the fragments are cobble.

Calcium carbonate equivalent: averages 20 to 35 percent above the bedrock


A horizon

Hue: 5YR, 7.5YR, 10YR

Value: 5 through 7 dry, 4 or 5 moist

Chroma: 3 or 4, dry or moist


B horizon

Hue: 5YR, 7.5YR, 10YR

Value: 5 through 7 dry/3, 4 or 5 moist

Chroma: 3 or 4, dry or moist


Texture: sandy loam, fine sandy loam, loam (less than 18 percent clay and less than 30 percent medium, coarse and very coarse sand)

COMPETING SERIES: These are the Akela (NM), Beach (TX), Chatticup (NV), Haleburu (NV), Hulda (AZ), Razorback (AZ), Tecopa (CA), and Upspring (CA) series. Beach soils are have drier soil moisture control sections in the winter. Akela soils are usually dry from October through May and formed on basalt. Chatticiup soils contain less than 15 percent calcium carbonate in the BK horizon and are moist less than 20 days cumulative in summer. Tecopa and Upspring soils are dry from June to November. Hulda soils contain more than 30 percent medium, coarse and very coarse sand. Haleburu and Razorback soils are moist less than 20 days cumulative in the summer months.

GEOGRAPHIC SETTING: Hindu soils are on rolling to steep slopes of mesas and hills at elevations of 1600 to 4800 feet. These soils formed in residuum and colluvium from limestone or calcareous sandstone or mudstone. Slopes range from 5 to 70 percent. The mean annual precipitation is 6 to 10 inches. The mean annual air temperature is 57 to 70 degrees F. The frost-free period is 175 to 250 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Arizo, Havasupai, and Stagecoach soils. Arizo and Stagecoach soils are very deep. Havasupai soils are shallow to a petrocalcic horizon.

DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderate or moderately rapid permeability.

USE AND VEGETATION: Hindu soils are used for limited livestock grazing and wildlife habitat. The present vegetation is blackbrush, banana yucca, green mormon-tea, Utah agave, black grama, slim tridens, and bush muhly.

DISTRIBUTION AND EXTENT: Northwestern Arizona. This series is moderately extensive.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: PHOENIX, ARIZONA

SERIES ESTABLISHED: Mohave County, Arizona; Soil survey of Hualapai-Havasupai Area, Parts of Coconino, Mohave and Yavapai Counties; 1993.

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

Ochric epipedon - The zone from 0 to 3 inches (A horizon)

Entisol feature - The absence of diagnostic subsurface horizons

Lithic contact - The boundary at 9 inches (R horizon)

Classified according to Keys to Soil Taxonomy Ninth Edition, 2003.

Responsibility for this series was transferred from Davis to Phoenix 4/2015. The last revision to the series was 1/2005. ET

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National Cooperative Soil Survey
U.S.A.