LOCATION HOOLIGAN MT

Established Series
Rev. PEM-KTS-RJS
03/2012

HOOLIGAN SERIES

The Hooligan series consists of moderately deep, well drained soils that formed in alluvium, colluvium or slide deposits over residuum. These soils are on alluvial fans, fan remnants, escarpments, hills, mountain slopes and landslides. Slopes are 2 to 35 percent. Mean annual precipitation is about 18 inches, and the mean annual air temperature is about 36 degrees F.

TAXONOMIC CLASS: Fine-loamy, mixed, superactive Ustic Argicryolls

TYPICAL PEDON: Hooligan silt loam, in rangeland (colors are for dry soil unless otherwise noted).

A1--0 to 5 inches; dark grayish brown (10YR 4/2) silt loam, very dark brown (10YR 2/2) moist; weak very fine and fine subangular blocky structure parting to weak very fine and fine granular; soft, very friable, slightly sticky and slightly plastic; many very fine and few fine roots; many very fine and fine dendritic tubular pores; 5 percent gravel; slightly acid (pH 6.4); clear wavy boundary.

A2--5 to 10 inches; grayish brown (10YR 5/2) loam, very dark grayish brown (10YR 3/2) moist; weak very fine and fine subangular blocky structure parting to weak very fine and fine granular; soft, very friable, slightly sticky and slightly plastic; many very fine and few fine roots; many very fine and fine dendritic tubular pores; 10 percent mica flakes; 10 percent gravel; slightly acid (pH 6.5); clear wavy boundary. (combined thickness of A horizons - 7 to 15 inches)

Bt1--10 to 26 inches; pale brown (10YR 6/3), gravelly clay loam, brown (10YR 5/3) moist; weak medium prismatic structure parting to moderate fine and medium subangular blocky; slightly hard, friable, moderately sticky and slightly plastic; common very fine and few fine roots; common very fine and few fine dendritic tubular pores; common faint patchy clay films on faces of peds; 10 percent mica flakes; 20 percent gravel; neutral (pH 6.7); clear wavy boundary.

Bt2--26 to 35 inches; light yellowish brown (10YR 6/4), clay loam, yellowish brown (10YR 5/4) moist; moderate fine and medium subangular blocky structure; slightly hard, friable, moderately sticky and slightly plastic; common very fine and few fine roots; common very fine and few fine dendritic tubular pores; common faint patchy clay films on faces of peds; 5 percent mica flakes; 5 percent gravel; neutral (pH 6.8); gradual wavy boundary. (combined thickness of Bt horizons - 10 to 25 inches)

Cr1--35 to 45 inches; pale yellow (2.5Y 7/3) semi-consolidated siltite beds that crush to loam, light yellowish brown (2.5Y 6/4) moist; neutral (pH 7.1); gradual smooth boundary. (0 to 15 inches thick)

Cr2--45 to 60 inches; pale yellow (2.5Y 7/3) semi-consolidated siltite beds that crush to loam, light yellowish brown (2.5Y 6/4) moist; neutral (pH 7.0).

TYPE LOCATION: Beaverhead County, Montana; approximately 2150 feet north and 850 feet east of the SW corner of sec. 13, T. 3S., R. 15W., Wisdom topographic quadrangle. UTM 12T, 312368e, 5049425n, NAD 83.

RANGE IN CHARACTERISTICS:
Mean annual soil temperature - 35 to 40 degrees F.
Mollic epipedon thickness - 7 to 15 inches
Depth to a paralithic contact - 20 to 40 inches

A horizons
Value: 4 or 5 dry; 2 or 3 moist
Chroma: 1 to 3; dry or moist
Texture: loam or silt loam
Clay content: 15 to 25 percent
Rock fragment content: 5 to 35 percent--5 to 30 percent gravel, 0 to 5 percent cobbles
Mica content: 0 to 15 percent
Reaction: pH 6.4 to 7.5

Bt horizons
Hue: 10YR or 2.5Y; dry or moist
Value: 5 to 7 dry; 3 to 5 moist
Chroma: 2 to 4; dry or moist
Texture: loam, clay loam or silt loam
Clay content: 25 to 35 percent
Rock fragment content: 5 to 35 percent--5 to 20 percent gravel, 0 to 15 percent cobbles
Mica content: 0 to 15 percent
Reaction: pH 6.6 to 7.6

COMPETING SERIES:
Amsden (WY) - are very deep
Barbarela (MT) - are deep to a lithic contact
Beaveridge (WY) - are very deep
Beavmid (WY) - are very deep
Cific (WY) - have secondary calcium carbonate accumulation
Coldspring (CO) - are deep to a lithic contact
Croftshaw (NM) - are very deep
Dewville (CO) - are very deep
Gelkie (CO) - are very deep
Highrye (MT) - are deep to a paralithic contact
Inchau (WY) - have a BA horizon
Kezar (CO) - are moderately deep to a lithic contact
Leavitt (WY) - are very deep
Lucky (CO) - are moderately deep to a lithic contact
Lymanson (WY) - have secondary calcium carbonate accumulation
Miracle (CO) - are moderately deep to a lithic contact
Monaberg (MT) - are very deep
Passcreek (WY) - are moderately deep to a lithic contact
Rainbolt (WY) - have secondary calcium carbonate accumulation
Tripit (WY) - have a AB horizon
Wellsville (CO) - are very deep
Woosley (WY) - are moderately deep to a lithic contact
Youga (CO) - have a BA horizon
Zade (MT) - have an Oi horizon

GEOGRAPHIC SETTING:
Landform - alluvial fans, fan remnants, escarpments, hills, mountain slopes and landslides
Elevation - 5,900 to 8,100 feet
Slope - 2 to 35 percent
Parent material - alluvium, colluvium or slide deposits over residuum
Climate - long, cold winters; cool, moist springs; short summers
Mean annual precipitation - 14 to 24 inches
Mean annual air temperature - 34 to 39 degrees F.
Frost-free period - 30 to 70 days

GEOGRAPHICALLY ASSOCIATED SOILS:
These are the Monaberg and Inabnit soils. The Monaberg soils are very deep and are in swales and on footslopes. The Inabnit soils are shallow and are on ridges of foothills.

DRAINAGE AND PERMEABILITY: Well drained; moderately slow permeability.

USE AND VEGETATION: Hooligan soils are used mainly for rangeland and wildlife habitat. Potential native vegetation includes Idaho fescue, bluebunch wheatgrass, as well as other grasses, forbs, and woody shrubs.

DISTRIBUTION AND EXTENT: Hooligan soils are of small extent in southwestern Montana. MLRAs - 43B, 44B.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana.

SERIES ESTABLISHED: Beaverhead County, Montana, Big Hole Valley Area, 2005.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - from 0 to 10 inches (A1, A2 horizons)
Argillic horizon - from 10 to 35 inches (Bt1, Bt2 horizons)
Paralithic contact - at 35 inches (Cr horizons)
Particle-size control section - from 10 to 30 inches (Bt1, part of Bt2 horizons)

Hooligan soils have a cryic temperature regime and an ustic moisture regime.

National Cooperative Soil Survey
U.S.A.