The mean annual precipitation is 7 to 10 inches. The frost- free period is about 240 to 280 days. These are the Casa Grande , Kamato and the similar Shontik and Tatai soils. Casa Grande and Kamato soils have natric horizons. Used for livestock grazing, wildlife habitat and irrigated cropland.
Present vegetation is desert saltbush, linear-leaf saltbush and wolfberry.
This series is not extensive. Natric subgroup - SAR exceeds 45 throughout the cambic horizon In October 2000, taxonomic classification was converted to the closest match found in Soil Taxonomy, Second Edition 1999. No update was made to horizon nomenclature, competing series section, etc. Other placements may be more appropriate after a complete update.