Cross, Whitman, et.al; USGS La Plata Colorado Folio. USGS Geologic Atlas of the United States, Folio 60, Washington, D.C., 1899. Folio, pp. 17, 4 map sheets (colored),1 stratigraphic column sheet and two sheets of photographs.
The atlas is complete and in the original tan title wraps with black cloth spine. The atlas is tight, old lib. stamp on upper corner of cover, light chipping to cover outer edge. Text and maps very clean and bright.
The authors provide a detailed description of the topography, geology, stratigraphy, structural geology, mineral deposits and mining in the La Plata mining district of southwestern, Colorado. The atlas will be shipped lightly rolled in a mailing tube.