United States Department of Agriculture, Natural Resources Conservation Service, United States Department of the Interior, Bureau of Land Management ; in cooperation with the Arizona Agricultural Experiment Station
United States Department of Agriculture, Natural Resources Conservation Service ... [and others] ; in cooperation with the Arizona Agricultural Experiment Station and the Kaibab-Paiute Tribe
U.S. Department of the Interior, Bureau of Land Management, Arizona Strip District-Arizona, Cedar City District-Utah, Shivwits and Dixie Resource Areas, Mohave County, Arizona and Washington County, Utah