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SOUDAN — Minnesota’s oldest and most famous underground mine will reopen for public tours in May after a $9.3 million restoration project kept it closed for more than two years. The Soudan Underground ...

The BBC's Tim Willcox reports on progress at the top of the mine shaft The top 90m (295ft) of an escape shaft at Chile's San Jose mine has been fully lined with metal tubing, reports say. A winch and ...

The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY), the globally diversified potash development group, wish to announce the appointment of mine shaft design specialists Alan Auld ...

WHEN an attempt is made to sink a shaft in very watery deposits of gravel, sand, and mud in the ordinary way—that is, by digging out the solid matter by hand and pumping the water to keep the bottom ...