A Preliminary Report on the Geology of the Grayback Mining District, Chaffee County, Colorado

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 download. Bulletin-02D.

Author: R.D. Crawford
Status: Out of Print
Year: 1910

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