The Secret Ravine Records consist of correspondence (1908-1913),
By-Laws, Minutes and Ledgers (1909-1911).
The Secret Ravine Mine was an unprofitable drift gravel gold mine
operated on the Middle Fork of the Yuba River near Alleghany, Sierra County
(Calif.). The Mining Company was incorporated in San Francisco (April 1909) and
its five member Board of Directors was chaired by S.W. Powell. The Company sold
stock between May 1909 and December 1910, but never had more than twenty
shareholders.The Secret Ravine Mining Company ceased operations in 1911.
Collection is open for research.