Eureka Mining District, Nevada

1880

Bolitho, Edwin

Nevada

1929

U.S. Geological Survey

1:250k

Roberts Mountains

1929

1:250k

Roberts Mountains

1929

1:250k

Roberts Mountains

1926

1:250k

Simpson Park Mtns

1979

1:100k

Simpson Park Mts

1979

1:100k

Crescent Valley

1987

1:100k

Crescent Valley

1987

1:100k

Battle Mountain

1988

1:100k