Altoga and Lewisville soils have fine-silty control sections, and are on terrace scarps lower in the landscape. In addition Altoga soils have carbonatic mineralogy. Ferris and Heiden soils have less than 60 percent clay in the particle-size control section and are on similar positions of adjacent areas with different parent material. Well drained and very slow permeability. Runoff is medium on 1 to 3 percent slopes, high on 3 to 5 percent slopes and very high on 5 to 12 percent slopes.
Infiltration is rapid when the soil is dry and cracked, but very slow when the soil is wet.
Mainly used for pasture and rangeland. Some areas are cultivated to small grain or hay crops. Native vegetation is mostly bluestems, buffalograss, Texas wintergrass, and threeawns with scattered mesquite, elm, and hackberry trees. Pasture plants are bermudagrass and klein grass. The series is inextensive.