making deep tunnel mining more likely to be used. The scale of some of the mines in the Silver Valley is hard to grasp. The galena deposits that led to the Bunker Hill stake in the 1880s were ...
Special to The New York Times. TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may view the ...
Anglo Asian Mining (LON: AAZ) said on Monday it had mined the first ore from Gilar, its new underground operation at the ...
A moment later, a powerful shockwave rips through the tunnel ... almost all the silver had already been mined and Potosí became a shell of its former self. Though mining still goes on in there ...
Located on a lonely mountain plain in Colorado ski country, the silver-rush-era town of Leadville holds secrets as deep as its tunnels and old mine workings.
The Sierra Silver Mine Tour explores the history of ... In addition to exploring the 1,500' mine tunnels underground, and the 3,000' of vintage track, visitors will be able to tour the restored ...
Exploration: Excellon to provide update on recent surface prospecting completed at Tres Cerros, a greenfields, bulk tonnage gold-silver epithermal target, 5.8 km northwest of the Mallay Mine.
BAKU, Azerbaijan, March 24. Anglo Asian Mining, gold, copper and silver producer primarily focused on Azerbaijan, is pleased ...