Northwestern United States and neighboring Canadian provinces / compiled and drawn in the Cartographic Section of the National Geographic Society for the National geographic magazine ; James M. Darley, chief cartographer.National Geographic Society (U.S.). Cartographic Section1950"Compilation by H.C. Bryan, R.W. Collins, R.J. Darley, A.D. Grazzini, and A.E. Holdstock. Relief by John J. Brehm."Inset: Puget Sound Region. Scale 1:1,000,000 or 15.8 miles to the in.Issued as supplement to National Geographic, v.97, no. 6, June 1950.Relief shown by shading and spot heights.cartographic