Forkwood -- Wyoming State Soil

Photograph of rolling landscape with big sagebrush and grass vegetation.

Photograph of the profile of a typifying pedon of Forkwood soil series.

Forkwood Soil Profile

Surface layer: grayish brown loam
Subsoil - upper: brown clay loam
Subsoil - lower: pale brown clay loam
Substratum: pale brown clay loam
The Forkwood series consists of very deep, well drained soils formed in slopewash alluvium derived from interbedded shale and argillaceous sandstone. These soils are used principally for livestock grazing and wildlife habitat. The native vegetation consists of big sagebrush, bluebunch wheatgrass, Sandberg bluegrass, and needleandthread.

Forkwood soils are in nearly level to gently sloping areas at elevations of 3500 to 6000 feet. The average annual precipitation ranges from 10 to 14 inches, and the average annual air temperature ranges from 43 to 51 degrees F. The frost free period is about 110 to 120 days.

Small scale map of Wyoming showing distribution of Forkwood soil series in Wyoming.

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