Unknown2018-11-072018-11-071947-11-30EPM-066-02-021http://hdl.handle.net/20.500.11867/1458112 sheets 9 x 11.5 inch. Typed. Photographs: 12 x 9 inch.This lengthy report, prepared by the Columbia Basin Commission, provides "information concerning the need for appropriations to continue construction of the irrigation system of the Columbia Basin Project...." Includes 12 full-sheet photographs with captions.IrrigationPhotograph