MAP SHOWING GLACIAL GEOLOGY OF THE BIGHORN MOUNTAINS, 1905. UNITED STATES GEOLOGICAL SURVEY PROFESSIONAL PAPER NO. 51, PLATE XXVI
Washington, DC: United States Geological Survey / USGS / Government Printing Office / GPO, 1905. Map. Folded color map sheet measuring 23.25h X 17.5w inches. Just the merest hint of toning, else a fine and bright copy. More