Elevation ranges from 6,420 to 6,550 feet. These are the Fourme , Judkins , and Spliten soils. Fourme soils lack bedrock within 40 inches and formed in alluvium. Judkins soils have ochric epipedons and are loamy-skeletal. They formed from rhyolite or basalt under forested conditions.
Spliten soils are shallow.
They formed in loess deposits on steeper slopes of more recent basalt flows. Principal vegetation consists of mountain big sagebrush, Idaho fescue, mountain brome, arrowleaf balsamroot, and lupine. Shotgun soils are of small extent. They are in eastern Idaho. Fremont County, Idaho, 1989.