Originally, Nevada in Maps contained historic geologic and mining district maps of Nevada, primarily produced by the U.S. Geological Survey between 1863-1968. It has been expanded to include over 4,000 maps—including contemporary maps of the state, side by side with other thematic maps. Maps can be browsed through the various collections and can be searched by keyword. These digital collections offer Nevada’s history cartographically for students and researchers at all levels, for legal use, and for the general public for infinite applications. Maps are available for free use.