B-02 Geology of the Grayback Mining District, Chaffee County, Colorado

Geology of the Grayback Mining District, Costilla County, Colorado, 1910, by Horace B. Patton, Charles E. Smith, G. Montague Butler, and Arthur J. Hoskin. Digital PDF download. B-02D

Author: Patton, Horace B., Charles E. Smith, G. Montague Butler, and Arthur J. Hoskin. “Bulletin 02 - Geology of the Grayback Mining District, Costilla County, Colorado.” Geology and Mineral Resources. Bulletin. Boulder, CO: Colorado Geological Survey, 1910.
Status: Digital
Year: 1910

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