Native vegetation consists of Arizona fescue, mountain muhly, and some western wheatgrass. When the range deteriorates blue grama, Kentucky bluegrass, and fringed sage are common. Central and southern Colorado, and northern and western Wyoming. The series is of moderate extent, having more than 30,000 acres. The Orofino series needs further study.
Rock fragments overlap.
Gelkie soils may have gravelly as well as cobbly modifiers in the particle size control section.