LOCATION FOURTEENMILE            WY

Tentative Series
TIK-DPG-DEW
05/2024

FOURTEENMILE SERIES

Depth class: Moderately deep
Drainage class: Well drained
Saturated hydraulic conductivity: Moderately high
Parent material: Slope alluvium over residuum weathered from sandstone
Geomorphic location: Structural benches or hillslopes
Slope range: 2 to 4 percent
Mean annual temperature: 4.5 degrees C (40 degrees F)
Mean annual precipitation: 210 millimeters (8.0 inches)

Taxonomic Class:
Fine-loamy, mixed, superactive, frigid Ustic Haplocalcids

Typical Pedon:
Fourteenmile loam in rangeland. (Colors are for dry soil unless otherwise noted.)

A--0 to 8 centimeters; pale brown (10YR 6/3) loam, brown (10YR 4/3) moist; weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; many very fine and fine roots throughout; many very fine and fine interstitial pores; 5 percent gravels; 5 percent calcium carbonate concretions around rock fragments; very slightly effervescent; moderately alkaline (pH 8.0); clear smooth boundary.

Bk1--8 to 25 centimeters; yellowish brown (10YR 5/4) sandy clay loam, brown (10YR 4/3) moist; moderate fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; common very fine, fine, and few medium roots throughout; many very fine, fine, and common medium interstitial pores; 8 percent gravels; 10 percent medium calcium carbonate concretions around rock fragments; strongly effervescent; moderately alkaline (pH 8.2); clear wavy boundary.

Bk2--25 to 43 centimeters; pale brown (10YR 6/3) sandy loam, light olive brown (2.5Y 5/3) moist; moderate medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; few fine and medium roots throughout; common very fine and medium, and many fine interstitial pores; 5 percent gravels; 10 percent calcium carbonate masses in matrix; strongly effervescent; moderately alkaline (pH 8.4); clear wavy boundary.

BCk--43 to 63 centimeters; very pale brown (10YR 8/3) gravelly sandy clay loam, very pale brown (10YR 8/2) moist; weak fine subangular blocky structure; moderately hard, firm, nonsticky, nonplastic; few fine roots throughout; few fine interstitial pores; 15 percent gravels; 20 percent calcium carbonate concretions around rock fragments; violently effervescent; strongly alkaline (pH 8.6); abrupt smooth boundary.

R--63 centimeters; bedrock

Type Location:
Sweetwater County, WY
USGS Quadrangle: Clay Buttes SW
Latitude: 41.75943
Longitude: -109.43231
Datum: WGS84
Coordinates sources: Hand-held GPS

Range in Characteristics:
Depth to calcic horizon--40 to 45 centimeters
Depth to bedrock--63 to 84 centimeters
Particle-size control section (weighted average):
Clay content--19 to 26 percent
Sand content--40 to 65 percent
Total rock fragments--10 to 24 percent

A horizon:
Hue--10YR
Value--5 to 6 dry; 4 moist
Chroma--3 dry or moist
Texture (less than 2 mm fraction)--Loam
Clay content--15 to 22 percent
Rock fragments--0 to 14 percent gravels
Calcium carbonate equivalent--1 to 3 percent
Reaction--pH 7.6 to 8.4
Thickness--6 to 8 centimeters

Bk horizon(s):
Hue--10YR or 2.5Y
Value--5 to 7 dry; 4 to 7 moist
Chroma--2 to 4 dry; 3 or 4 moist
Texture (less than 2 mm fraction)--Sandy loam, loam, or sandy clay loam
Clay content--16 to 25 percent
Rock fragments--0 to 30 percent fragments - 0 to 30 percent gravels, 0 to 5 percent channers
Calcium carbonate equivalent--3 to 15 percent
Reaction--pH 8.0 to 9.0
Thickness--35 to 57 centimeters

BCk/n horizon:
Hue--10YR
Value--7 or 8 dry; 6 or 8 moist
Chroma--3 dry; 2 to 4 moist
Texture (less than 2 mm fraction)--Sandy loam or sandy clay loam
Clay content--18 to 25 percent
Rock fragments--0 to 45 percent fragments--0 to 45 percent gravels, 0 to 15 percent channers
Calcium carbonate equivalent--15 to 25 percent
Sodium absorption ratio--6 to 25
Reaction--pH 8.4 to 9.2
Thickness--17 to 20 centimeters

C horizon (when present):
Hue--10YR
Value--7 dry; 6 moist
Chroma--3 dry; 4 moist
Texture (less than 2 mm fraction)--Sandy clay loam or sandy loam
Clay content--19 to 24 percent
Rock fragments--15 to 34 percent gravels
Calcium carbonate equivalent--5 to 15 percent
Sodium absorption ratio--15 to 25
Reaction--pH 8.8 to 9.2
Thickness--0 to 4 centimeters

Competing Series:
Langspring (CO, WY)-is very deep
Luhon (CO, MT, NM, UT, WY) -is very deep
Piezon (CO)-is moderately deep to paralithic contact and has less than 35 percent fine sand or coarser throughout the control section
Rockinchair (WY, UT)-is moderately deep to paralithic contact

Geographic Settings:
Parent material--Slope alluvium over residuum weathered from sandstone
Landform--Structural benches or hillslopes
Slope ranges--2 to 4 percent
Mean annual air temperature--2.5 to 7.0 degrees C (36.5 to 44.6 degrees F)
Mean annual precipitation range--180 to 230 millimeters (7 to 9 inches)
Frost-free period--50 to 100 days
Elevation--2,010 to 2,260 meters (6,590 to 7,410 feet)
Climate--long, cold winters; cool, moist springs; short, warm summers

Geographically Associated Soils:
None listed.

Drainage and Saturated Hydraulic Conductivity:
Drainage class: Well drained
Saturated hydraulic conductivity: 1.5 to 5 m/sec

Use and Vegetation:
Fourteenmile soils are primarily used for rangeland. The potential native vegetation is Wyoming big sagebrush, bottlebrush squirreltail, Indian ricegrass, thickspike wheatgrass, and needle and thread.

Distribution and Extent:
Fourteenmile soils are of small extent in southwestern Wyoming; MLRA 34A.

Soil Survey Region (SSR) Responsible:
Bozeman, Montana

Series Proposed:
Sweetwater County, WY 2021. Fourteenmile series is derived from a topographic location.

Remarks:
Typical Pedon Taxonomic Features:
Ochric epipedon--0 to 8 centimeters (A horizon)
Calcic horizon--8 to 63 centimeters (Bk horizons)
Lithic contact--63 centimeters
Particle-size control section-25 to 63 centimeters
Taxonomic version: Keys to Soil Taxonomy, 13th edition, (2022)

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National Cooperative Soil Survey
U.S.A.