LOCATION HASTEE                  NV

Established Series
Rev. EWB/WED/JVC/JBF
02/2012

HASTEE SERIES

The Hastee series consists of deep, well drained soils that formed in colluvium derived from granitic rock. Hastee soils are on mountains. Slopes are 50 to 75 percent. The mean annual precipitation is about 460 mm and the mean annual temperature is about 4 degrees C.

TAXONOMIC CLASS: Sandy-skeletal, mixed Pachic Haplocryolls

TYPICAL PEDON: Hastee extremely bouldery coarse sandy loam--rangeland. (Colors are for dry soil unless otherwise noted.) The soil surface is partially covered with 25 percent boulders, 10 percent stones, and 5 percent gravel.

A1--0 to 15 cm; dark grayish brown (10YR 4/2) extremely bouldery coarse sandy loam, very dark brown (10YR 2/2) moist; moderate fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; many very fine and many fine roots; many fine interstitial pores; 30 percent boulders and stones, 10 percent gravel; slightly acid (pH 6.3); clear wavy boundary. (10 to 25 cm thick)

A2--15 to 43 cm; dark grayish brown (10YR 4/2) very stony coarse sandy loam, very dark brown (10YR 2/2) moist; moderate fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; many very fine and many fine roots; many fine interstitial pores; 40 percent stones, 5 percent cobbles, and 10 percent gravel; slightly acid (pH 6.3); clear wavy boundary. (25 to 46 cm thick)

C1--43 to 56 cm; pale brown (10YR 6/3) very stony loamy coarse sand, brown (10YR 4/3) moist; massive; soft, very friable, nonsticky and nonplastic; common very fine, common fine, and common medium roots; common very fine and common fine interstitial pores; 40 percent stones, 5 percent cobbles, and 10 percent gravel; slightly acid (pH 6.4); clear wavy boundary. (10 to 36 cm thick)

C2--56 to 114 cm; pale brown (10YR 6/3) very stony loamy coarse sand, brown (10YR 4/3) moist; massive; slightly hard, very friable, nonsticky and nonplastic; few very fine, few fine, and few coarse roots; common very fine and common fine interstitial pores; 40 percent stones, 5 percent cobbles, and 10 percent gravel; neutral (pH 6.6); clear wavy boundary.

2Cr--114 cm; weathered granitic rock.

TYPE LOCATION: Washoe County, Nevada; in the Granite Range about 11.5 miles north-northwest of Gerlach; 1,100 feet south and 1,800 feet east of the northwest corner of section 30, T. 34 N., R. 23E.; USGS The Banjo 7.5 minute topographic quadrangle; latitude 40 degrees 48 minutes 28 seconds N and longitude 119 degrees 25 minutes 15 seconds W; NAD 83.

RANGE IN CHARACTERISTICS:
Soil moisture: Moist in winter, spring, and early summer, dry mid-July through early October; xeric soil moisture regime that borders on aridic.
Mean annual soil temperature: 5 to 7 degrees C.
Mean summer soil temperature: 12 to 15 degrees C.
Mollic epipedon thickness: 40 to 60 cm.
Depth to bedrock: 100 to 150 cm to a paralithic contact. The paralithic materials below the contact are weathered granite or granodiorite.

Particle-size control section - Clay content: 5 to 12 percent.
Rock fragments: 35 to 60 percent, dominantly stones and boulders. Lithology of fragments is granite or granodiorite.

A horizons
Value: 3 or 4 dry, 2 or 3 moist.
Organic matter content: 2 to 4 percent.

C horizons
Chroma: 2 or 3, dry or moist.
Texture: Very stony loamy coarse sand or very bouldery loamy coarse sand
Clay content: 5 to 12 percent.
Rock fragments: 35 to 60 percent.
Reaction: Slightly acid or neutral.

COMPETING SERIES: This is the Waterpeak series. Waterpeak soils have bedrock deeper than 100 cm.

GEOGRAPHIC SETTING: Hastee soils are on mountains. They typically occur on backslope positions. These soils formed in colluvium derived from granitic rocks. Slopes are 50 to 75 percent. Elevations range from 2,075 to 2,720 meters. The climate is semiarid with cold, moist winters and cool, dry summers. The mean annual precipitation is 400 to 500 mm, mean annual temperature is 3 to 6 degrees C, and the frost-free period is 30 to 60 days.

GEOGRAPHICALLY ASSOCIATED SOILS: This the Granipeak soil. Granipeak soils are loamy-skeletal, have argillic horizons and thin mollic epipedons, and have a frigid temperature regime.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; medium surface runoff; high saturated hydraulic conductivity.

USE AND VEGETATION: Hastee soils are used for rangeland and wildlife habitat. The present vegetation is mainly snowberry, mountain big sagebrush, mountain brome, Columbia needlegrass, creambush oceanspray, and basin wildrye.

DISTRIBUTION AND EXTENT: Northwestern Nevada. These soils are not extensive with about 4,000 acres of the series mapped to date. MLRA 23.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California.

SERIES ESTABLISHED: Washoe County (Central Part), Nevada, 1990.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - The zone from the soil surface to 43 cm (A1 and A2 horizons).
Paralithic contact - The boundary at 114 cm to underlying soft, weathered bedrock (2Cr layer).
Particle-size control section - The zone from 25 to 100 cm (C1 horizon and parts of the A2 and C2 horizons).

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National Cooperative Soil Survey
U.S.A.