Unknown2019-02-222019-02-221963EPM-072-02-002http://hdl.handle.net/20.500.11867/155856 sheets 8 x 8 inch. Printed recto and verso.Issued by the U.S. Department of the Interior, Bureau of Reclamation, this brochure takes the form of 21 questions and answers. Black and white photos throughout.Government documentsDams--Grand Coulee;Irrigation