prepared under the direction of J.V.B. Wells ; prepared in cooperation with the States of California, Idaho, Nevada, Utah, and Wyoming, and agencies of the Federal Government
Date
1957
Series
Water-supply paper (Washington, D.C.) ; no. 1260-E
prepared under the direction of J.V.B. Wells ; prepared in cooperation with the Department of Public Works of California, the Corps of Engineers, United States Army, and the United States Bureau of Reclamation