Geological Survey (U.S.)Relief shown by contours and spot heights ; contour interval on land 20 ft. ; contour interval on river surface 5 ft.; Survey dates: 1924.; Topography also done by K.W. Trimble and L.O. Newsome.; Vertical scale of profiles 1 in. = 20 ft.; Includes "Key map of plan sheets" on each sheet.; "7 plan sheets, 7 profile sheets."sheets 53 x 68 centimetersJPEGUMN_ALMA:9959276900001701engThe Survey (Washington)PublicPlan and profile of Clearwater River and tirbutaries, IdahoMapsIdahoUniversity of Minnesota