Includes: Preliminary Field Report of the United States Geological Survey of Colorado and New Mexico... 1869. * Preliminary Report of the United States Geological Survey of Wyoming, and Portions of Contiguous Territories... 1871. * Sixth Annual Report of the United States Geological Survey of The Territories, Embracing Portions of Montana, Idaho, Wyoming, and Utah... 1873. * Annual Report of the United States Geological and Geographical Survey of the Territories, Embracing Colorado, Being a Report of Progress of the Exploration for the Year 1873. Folding maps and profiles. 1874. * Eleventh Annual Report of the United States Geological and Geographical Survey of the Territories, Embracing Idaho and Wyoming, Being a Report of the Progress of the Exploration for the Year 1877. Folding maps and profiles. 1879. Preliminary Report of the United States Geological Survey of Montana...Fifth Annual Report of Progress. Folding maps. 1872. * Ninth Annual Report of the United States Geological and Geographical Survey of the Territories, Embracing Colorado...For the Year 1875. Folding profiles and maps. 1877. * Tenth Annual Report of the United States Geological and Geographical Survey of the Territories, Embracing Colorado...For the Year 1876. Folding profiles and maps. 1878. * First, Second, and Third Annual Reports of the United States Geological and Geographical Survey of the Territories for the Years 1867, 1868, and 1869... Half-morocco and boards. 1873. * Annual Report of the United States Geological and Geographical Survey of the Territories Embracing Colorado...the Year 1874. Maps and plates, many folding. Full green morocco, elaborately decorated in gilt, all edges gilt. 1876. Together 10 octavos, all but 2 in their original cloth. First Editions.