Walsenburg Folio, Colorado. USGS Geologic Atlas of the United States No. 68
1900
United States Geologic Survey, 1900. Very Good. Walsenburg Folio, Colorado. USGS Geologic Atlas of the United States No. 68. Washington, D.C.: United States Geologic Survey, 1900. Folio. Wraps. Book condition: Very good. (Inventory #: UWAL03LR)