Date: 1943-01 Source: Hubbard, Henry G. 'Mines and Mineral Resources of Santa Cruz County.' "California Journal of Mines and Geology," January 1943. pp. 43-44. Type: ARTICLE
Date: 1943-01 Source: Hubbard, Henry G. 'Mines and Mineral Resources of Santa Cruz County.' "California Journal of Mines and Geology," January 1943. pp. 44-46. Type: ARTICLE