Mohall soils have argillic horizons. Pimer soils are fine-silty and have more than 1 percent organic matter. Vint soils are sandy. Used for livestock grazing and irrigated cropland. Under cultivation, Gilman soils are used for growing alfalfa, cotton, grains, sugar beets and truck crops such as melons, lettuce, onion, carrots, broccoli and potatoes.
Native vegetation is mesquite, catclaw, creosotebush, arrowweed and saltbush.
Cottonwoods, willows and salt cedar grow in open areas. Gilman soils are extensive. MLRA is 31 and 40.