Cross, Whitman, Howe, E., Irving, J.D., & Emmons, W. H.; Needle Mountains Folio, Colorado. Geologic Atlas Folio #131. Washington D. C., U.S. Geological Survey, 1905. Large folio (18 x 21 inches), pp.13, (with explanatory text on inside of covers), 1 tinted topographic map, 1 sheet of columnar sections, 1 colored geological map, 1 colored economic geology map, 1 colored structural sections maps, 2 plates of photographs.
The folio is complete and in the original tan title wraps with a black cloth spine. Binding it tight a clean with light toning to upper cover margin, library stamp of Kittery Maine on upper inner cover corner. The text and maps are clean and bright. Very good condition.
Between 1894 and 1945 the USGS issued 227 folios covering various areas of the United States. The text pages of a folio covered the geology, historical geology, stratigraphy and if present the mineral and mining industry.
The authors discuss the geography, geology, stratigraphy and structure, the origins of the ore bodies and the various mines, mining camps and prospects in this famous mining district.
The folio will be shipped lightly rolled in shipping wrap in either a USPS or Fed Ex shipping tube.