The Shinumo Quadrangle Grand Canyon District Arizona

Washington: Government Printing Office, 1914. Department of the Interior United States Geological Survey, George Otis Smith, Director. Bulletin 549. 100 pp. Softcover. Gray printed front wrapper. Black and white facsimile photgraphs, folding profile, tables. General toning to pages, page 100 is very yellowed; else internally very good. Map present.