The climate is characterized by cool wet winters and hot dry summers. The mean annual precipitation of 12 to 16 inches. These are the Bakeoven and Watama soils. Bakeoven soils are less than 12 inches deep to bedrock and contain more than 50 percent fragments coarser than 2 mm. Watama soils are less than 40 inches deep to bedrock and lack argillic horizons.
Principal use is for grain crops.
Other uses are hay and pasture and livestock grazing. Vegetation is mainly bluebunch wheatgrass, Idaho fescue, Sandberg bluegrass,buckwheat, and antelope bitterbrush. The soils are inextensive. Wasco County, Oregon, 1975. The differentiae between the Wapinitia and Drews series are not clear.