Elevation ranges from 8,200 to 12,000 feet. The average annual precipitation is 18 inches. The precipitation ranges from 15 to 32 inches with peak periods received in the early spring and early summer months. The frost-free period is 40 to 60 days. These are the Home Camp soils and the competing Vulcan soils.
Vulcan soils have fragmental layers.
Home Camp soils have a mollic epipedon, and have a lithic contact at less than 40 inches. These soils are used principally as native pastureland or for forestry and recreational purposes. Native vegetation is spruce, fir, and a sparse understory of grasses and shrubs. The series is extensive. Rio Grande County Area, Colorado, 1972.