In more northerly latitudes in Wyoming, they are at elevations as low at 5,500 feet. The mean annual precipitation is about 20 inches, with peak periods of precipitation during the spring and early summer months. Chubbs soils have albic horizons and lack mollic epipedons. Trump soils lack argillic horizons. These soils are used principally for native pastureland.
Native vegetation consists of ring muhly, mountain fescue, and some blue grama.
Present known distribution is limited to mountainous areas of Colorado and Wyoming. The series is of moderate extent. Chaffee County, Trout Creek Area, Colorado, 1959.