Geology of the Aspen Mining District, Colorado (Department of the Interior Monographs of the United States Geological Survey Volume XXXI); Atlas to Accompany Monograph XXXI on the Geology of the Aspen District Colorado - 2 volumes
Washington DC; New York: Government Printing Office; Julius Bien & Co, 1898. First edition. Leather bound. Two volumes, varied bindings (set pieced together). Monograph: 260; [x]pp. Quarto [30 cm] Dark reddish brown cloth over boards with a gilt stamped title on the spine, and double blind ruled borders on the..... More