LOCATION PINEPOINT               UT

Established Series
Rev. EB/KDS
10/2018

PINEPOINT SERIES

The Pinepoint series consists of moderately deep to very deep, somewhat excessively drained, very rapidly permeable soils that formed in eolian sand. Pinepoint soils are on sand sheets on structural benches, alluvial flats, drainageways, and climbing dunes. Slope ranges 2 to 50 percent. The average annual precipitation is about 14 inches, and the mean annual air temperature is about 48 degrees F.

TAXONOMIC CLASS: Mesic, coated Ustic Quartzipsamments

TYPICAL PEDON: Pinepoint fine sand--rangeland, (Colors are for air-dry soil unless otherwise stated).

A--0 to 6 inches; pale brown (10YR 6/3) fine sand, brown (10YR 4/3) moist; single grain and weak fine subangular blocky structure; soft, very friable, nonsticky, and nonplastic; common very fine, fine, and few medium roots; noneffervescent; neutral (pH 6.8); gradual wavy boundary. (1 to 8 inches thick)

C1--6 to 15 inches; pale brown (10YR 6/3) fine sand, yellowish brown (10YR 5/4) moist; single grain; loose, nonsticky, and nonplastic; common fine and medium roots; noneffervescent; neutral (pH 6.8); gradual wavy boundary. (4 to 12 inches thick)

C2--15 to 60 inches; very pale brown (10YR 7/3) fine sand, yellowish brown (10YR 5/4) moist; single grain; loose, nonsticky, and nonplastic; common fine and medium roots; no effervescence; slightly alkaline (pH 7.4). (30 to 50 inches thick)

TYPE LOCATION: Kane County, Utah; lat. 37 degrees 10 minutes 27.21 seconds N. and long. 112 degrees 21 minutes 16.71 seconds W., NAD 83.

RANGE IN CHARACTERISTICS:

Soil moisture - The soils are dry in some or all parts for 90 or more cumulative days during normal years, but are not dry in all parts for more than half of the cumulative days when the soil temperature at 50 cm is greater than 43 degrees F. In normal years, the soils are moist in all parts for 45 or more consecutive days in the four months following the winter solstice and are dry in all parts for less than 45 consecutive days during the 4 months following the summer solstice. Aridic ustic moisture regime.

Mean annual soil temperature: 47 to 54 degrees F.

Depth: 40 to 60 + inches deep

Rock fragments: gravel content ranges from 0 to 5 percent

Clay content: 1 to 10 percent

Reaction: neutral to moderately alkaline

A horizon
Hue: 5YR, 7.5YR, 10YR
Value: 4 to 7 dry, 3 to 6 moist
Chroma: 2 to 6, dry or moist

C horizon
Hue: 5YR, 7.5YR, 10YR
Value: 4 to 7 dry, 3 to 6 moist
Chroma: 2 to 8, dry or moist
Texture: fine sand, loamy fine sand, loamy sand, sand, very fine sand

COMPETING SERIES: There are no competing series.

GEOGRAPHIC SETTING:
Pinepoint soils are on sandsheets on structural benches, alluvial flats, climbing dunes and drainageways at elevations of 4,530 to 8,200 feet. Slopes range from 1 to 60 percent. These soils formed from eolian sand. The mean annual precipitation is 12 to 17 inches. The mean annual air temperature is 45 to 52 degrees F. The frost-free period is 100 to 150 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Parkwash and Tenneycanyon soils. Parkwash soils have a lithic contact within 20 inches. Tenneycanyon soils contain clay lamellae at 40-60 inches.

DRAINAGE AND PERMEABILITY: Somewhat excessively drained; slow runoff; very rapid permeability.

USE AND VEGETATION: These soils are used for livestock grazing, and wildlife habitat. Vegetation is mountain big sagebrush, sand sagebrush, rubber rabbitbrush, blue grama, green Mormon tea, broom snakeweed, Indian ricegrass, and sandhill muhly.

DISTRIBUTION AND EXTENT: Southern Utah. The series is of limited extent. MLRA 35.

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

SERIES ESTABLISHED: Grand Staircase-Escalante National Monument Soil Survey, Kane County, Utah 2004.

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

Ochric epipedon: the zone from 0 to 6 inches (A horizon)

Siliceous mineralogy: this soil contains more than 90 percent by weight silica minerals, the dominant mineral is quartz with very minor amounts of chalcedony.

Classified according to Soil Taxonomy, Second Edition, 1999; Keys to Soil Taxonomy, Tenth Edition, 2006.

Updates and revisions for the correlation of Navajo Mountain Area (AZ711), June 27, 2008, CEM.

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National Cooperative Soil Survey
U.S.A.