LOCATION HILLER NV
Established Series
DJM/JVC
04/2015
HILLER SERIES
The Hiller series consists of very deep, well drained soils that formed in alluvium derived from mixed rocks. Hiller soils are on ballenas. Slope ranges from 15 to 50 percent. The mean annual precipitation is about 6 inches and the mean annual temperature is about 66 degrees F.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, thermic Durinodic Haplocalcids
TYPICAL PEDON: Hiller extremely gravelly sandy loam, rangeland and wildlife habitat. (Colors are for dry soil unless otherwise noted.) The soil surface is covered by approximately 45 percent pebbles, 10 percent cobbles and 10 percent stones.
A--0 to 3 inches; light yellowish brown (10YR 6/4) extremely gravelly sandy loam, dark yellowish brown (10YR 3/4) moist; moderate medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; few very fine roots; many very fine interstitial and few fine interstitial and tubular pores; 55 percent pebbles, 5 percent cobbles and 5 percent stones; violently effervescent; moderately alkaline (pH 8.2); clear smooth boundary. (2 to 5 inches thick)
Bw--3 to 8 inches; light yellowish brown (10YR 6/4) very gravelly sandy loam, dark yellowish brown (10YR 4/4) moist; weak coarse subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; many very fine and few fine roots; few very few and fine interstitial and tubular pores; 40 percent pebbles and 10 percent cobbles; violently effervescent; moderately alkaline (pH 8.2); clear wavy boundary. (4 to 6 inches thick)
Bk--8 to 14 inches; light yellowish brown (10YR 6/4) very gravelly loam, dark yellowish brown (10YR 4/4) moist; massive; soft, very friable, slightly sticky and slightly plastic; common very fine and few fine roots; few very fine and fine interstitial and tubular pores; common (20 percent) fine distinct calcium carbonate coats on bottom and sides of rock fragments; 40 percent pebbles and 10 percent cobbles;violently effervescent; moderately alkaline (pH 8.4); clear wavy boundary. (5 to 10 inches thick)
Bqk--14 to 60 inches; very pale brown (10YR 7/3) very gravelly loam, brown (10YR 5/3) moist; massive; moderately hard, firm, slightly sticky and slightly plastic; few very fine and few fine roots; few very fine interstitial and tubular pores; many (45 percent) fine calcium carbonate and silica coats on bottom of rock fragments; few weakly cemented calcium carbonate seems and soft masses; 35 percent moderately cemented planar durinodes; 40 percent pebbles, 10 percent cobbles and 5 percent stones; violently effervescent; strongly alkaline (pH 8.8).
TYPE LOCATION: Clark County, Nevada; in the Lake Mead National Recreation Area about 2.5 miles east of Lakeside Bays along the eastern shore of the Overton Arm; 1,500 feet south and 1,700 feet east of the northwest corner of section 32, T. 20 S., R. 69 E.; USGS Garrett Butte, Nevada-Arizona 7.5 minute topographic quadrangle; 36 degrees 9 minutes 12 seconds north latitude and 114 degrees 18 minutes 34 seconds west longitude, NAD 27; UTM 11, 742056e, 4004109n, NAD 83.
RANGE IN CHARACTERISTICS:
Soil moisture - Usually dry, moist in some part for short periods during winter and early spring and for brief periods between July and October following convection storms; typic aridic moisture regime.
Mean annual soil temperature - 66 to 71 degrees F.
Depth to calcic horizon - 6 to 10 inches.
Depth to duric feature: 10 to 20 inches.
Reaction: Moderately alkaline or strongly alkaline.
Control section - Clay content: 8 to 18 percent.
Rock fragments: 35 to 60 percent, mainly gravel.
A horizon - Hue: 7.5YR or 10YR.
Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 3 or 4, dry or moist.
Bw horizon - Hue: 7.5YR or 10YR.
Value: 4 to 6 dry, 3 or 4 moist.
Chroma: 3 or 4 moist.
Texture: Loam or sandy loam.
Rock fragments: 35 to 60 percent.
Structure: Fine through coarse.
Calcium carbonate equivalent in the fine earth fraction: 5 to 10 percent.
Bk horizon - Hue: 7.5YR or 10YR.
Value: 4 or 5 moist.
Chroma: 3 or 4, dry or moist.
Texture: Loam or sandy loam.
Rock fragments: 35 to 60 percent.
Structure: Massive or subangular blocky.
Calcium carbonate equivalent in the fine earth fraction: 10 to 20 percent.
Identifiable secondary calcium carbonate by volume: 5 to 20 percent.
Bqk horizon - Hue: 7.5YR or 10YR.
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 3 or 4.
Texture: Loam or sandy loam.
Rock fragments: 35 to 60 percent.
Calcium carbonate equivalent in the fine earth fraction: 15 to 25 percent.
Identifiable secondary calcium carbonate by volume: 5 to 20 percent.
Other features: 20 to 40 percent discontinuous,weakly or moderately cemented silica and calcium carbonate planar and / or lenticular shaped masses.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Hiller soils are on ballenas. These soils formed in alluvium derived from mixed rocks. Slope ranges from 15 to 50 percent. Elevations are 1,800 to 3,100 feet. The climate is arid with warm, moist winters and hot, dry summers. The mean annual precipitation is 5 to 7 inches, mean annual temperature is 64 to 68 degrees F., and the frost-free period is 240 to 300 days.
GEOGRAPHICALLY ASSOCIATED SOILS: This is the
Huevi soil. Huevi soils have a hyperthermic temperature regime.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderate permeability.
USE AND VEGETATION: These soils are used for rangeland and wildlife habitat. The present vegetation is mainly creosotebush and white bursage.
DISTRIBUTION AND EXTENT: Mojave Desert of southern Nevada. MLRA 30. These soils are moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: PHOENIX, ARIZONA
SERIES ESTABLISHED: Clark County Area, Nevada, 2006. Proposed in Clark County, Nevada, 1999. The name is from the Hiller Mountains.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - 0 to 7 inches (A and part of the Bw horizon).
Calcic horizon - 8 to 60 inches (Bk and Bqk horizons).
Duric feature - 14 to 60 inches (Bqk horizon).
Particle-size control section - 10 to 40 inches (Parts of the Bk and Bqk horizons).
Responsibility for this series was transferred from Davis to Phoenix 4/2015. The last revision to the series was 7/2006. ET
National Cooperative Soil Survey
U.S.A.