 Kennecott Mine
by Bob Townsend
|  West Pennines Minerals
by Hajar
|  Silver Bear Mine August 2009
by Colin Macdonald
|  A Salgótarjáni Bányamúzeum - The Mine Museum of Salgótarján
by Zoltán Balogh
|  Monument Valley Weekend February 2020: Monument Valley, River House Ruins, Mexican Hat, and Coal Mine Canyon
by Steve, Katherine, and Norah
|
 Pulaski Tunnel Trail
by Jeff B.
|  Levant mine & Mitchell 1840 working beam engine
by chris morton
|  Kilhope Lead Mine
by Jim Lanyon
|  Convict Coal Mine Ruins
by zamar
|  Universal Mine area, May 29 and 30, 2005
by rlah
|