Bibliography
Chandra, D. K., 1961, Geology and mineral depolits of the Colfax and Foresthill quadrangles: California Div. Mines Spec. Rept. 67. 50 pp.
Hobson, J. B., 1890, Iowa Hill mining district: California Min. Bur. Rept. 10, pp.419-425.
Jarman, Arthur, 1927, Iowa Hill: California Min. Bur. Rept. 23, pp. 86-87.
Lindgren, Waldemar, 1900, Colfax folio: U. S. Geol. Survey Geol. Atlas of the U.S., folio 66, 10 pp.
Lindgren, Waldemar, 1911, Tertiary gravels of the Sierra Nevada, Iowa Hill and Wisconsin Hill: U.S. Geol. Survey Prof. Paper 73, pp. 148-149.
Logan, C. A., 1936, Gold mines of Placer County, Big Dipper, Morning Star, and Succor Flat channel mines: California Div. Mines Rept. 32, pp. 52-54, 65-66, and 79.
Waring, C.A., 1919, Placer County, Iowa Hill district: California Min. Bur. Rept. 16, p. 318.