"Geological Map of the Eureka District, Nev.", U.S. Geological Survey (USGS)
Period: 1882 (dated)
Color: Printed Color
13.4 x 18.3 inches
34 x 46.5 cm
This attractive geologic map is focused on the Eureka district in Nevada, an important and early silver mining region developed shortly after the discoveries in the Reese district in 1862. A key at bottom identifies 25 different geologic units with an impressive scale of 7200 feet per inch. The geology was completed by Arnold Hague and the topography was by F.A. Clark. Lithographed by Julies Bien & Co.