United States. Bureau of ReclamationRelief shown by contours, hachures, and spot heights.; "Map no. 21441."; Includes text and index map.25 x 50 centimetersJPEGUMN_ALMA:9940083780001701engBureau of Reclamation (Washington, D.C)PublicUmatilla Irrigation Project, OregonMapsOregonUniversity of Minnesota