Closed Basin Division, San Luis Valley project, Colorado : Hearings before the Subcommittee on Irrigation and Reclamation of the Committee on Interior and Insular Affairs, House of Representatives, Ninety-first Congress, second session, on H.R. 17067 to authorize the construction, operation, and maintenance of the Closed Basin Division, San Luis Valley Project, Colorado, and for other purposes, hearings held in Washington, D.C. August 6 and 7, 1970.