The current owners of the Sunshine Mine complex, near Kellogg, Idaho, are working on a plan to reopen the mine in about five ...

Elon Musk referenced a Pennsylvania limestone mine where federal employee retirements are processed, but the mine's story is complicated.

Federal employee retirements are processed using paper, by hand, in an old limestone mine in Pennsylvania ... a nonprofit organization researching land use in the U.S., the limestone mine near Boyers ...

In a staggering display of cruelty, South African police laid siege to an illegal gold mine near Johannesburg, leaving at ...