P12-200-2848NA Gerber Dam, Klamath Project, Oregon-California. "Downline" in center. Hole in ice framed with 2' x 12' timbers. Left to right: Employee of Langell Valley Irrigation District; T. E. Morris; G. W. Fuller; and B. H. Carter; February 15, 1966; Bureau of Reclamation photo by Wes W. Nell