Cuero soils have an argillic horizon and mollic epipedon thicker than 20 inches. Monteola soils are clayey throughout and have gilgai microrelief and slickensides. Runge and Weesatche soils have an argillic horizon containing more than 18 percent clay. Cuero, Monteola, Runge and Weesatche soils all occur on adjacent, slightly lower toeslope landscape positions. Shiner soils are on adjacent, slightly higher positions.
Permeability is moderate.
Runoff is negligible on slopes less than 1 percent, very low on 1 to 3 percent slopes, low on 3 to 5 percent slopes, and medium on 5 to 8 percent slopes. Some areas with nearly level to gently sloping areas are cultivated to grain sorghum and cotton. Native vegetation is mainly little bluestem, sideoats grama, Texas wintergrass, curlymesquite, and silver bluestem. Woody species are mesquite, huisache, and pricklypear. The series is extensive.