A brief history of the Empire Mine at Grass Valley
By: by Charles A. Bohakel.
Contributors: Empire Mine Park Association,
Edition: Rev. ed.
Publisher: Empire Mine Park Association
Published: 1980
Place of publication: Grass Valley, CA
Language: eng
Number of pages: 34
Subjects: Gold mines and mining -- California -- Grass Valley (Calif.) -- History.; Gold mines and mining -- California -- Nevada County -- History.; Empire Mine (Calif.) -- History.; Grass Valley (Calif.) -- History.; Nevada County (Calif.) -- History.
Other titles: Brief history of the Empire Mine as Grass valley :; Empire Mine at Grass Valley