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By: Kepner, William G. - United States. Bureau of Land Management. Phoenix District Office.Edition:Publication info: [Phoenix, Ariz.], U.S. Department of the Interior, Bureau of Land Management, Phoenix District Office, 1979Volume:Series:Holding Institution: Bureau of Land ManagementSubjects: Arizona Big Sandy River Bill Williams River Watershed Bill Williams River Watershed (Ariz.) Burro Creek (Mohave County) Riparian animals Riparian plants Santa Maria River Water quality Watershed ecologyBHL Collections: