Wikimedi'Òc

View of the mines at Marysville Montana by Carleton E Watkins.jpg - MarmadukePercy

Arrastra diagram 1886.gif - Tillman

Bretz, Kohinoor Mine, 1884.jpg - Tillman

Appendix to the Journals of the Senate and Assembly of the session of the Legislature of the State of California (1883) (14596896219).jpg - SteinsplitterBot