MLRA 67 - Central High Plains Colorado, Nebraska, and Wyoming 74,410 km2 (28,730 mi2)

Soils:
Most of the soils are Ustolls and Argids. They are deep and medium textured and fine textured and have mixed or montmorillonitic mineralogy. They have an aridic moisture regime that is borderline to ustic and a mesic temperature regime. The nearly level to gently sloping, fine Paleustolls (Weld and Platner series) and loamy Haplargids (Fort Collins and Vona series) on uplands formed in eolian and alluvial materials under a cover of grass. Torriorthents, Haplustolls, and Argiustolls are the major included soils.

12/16/98