completing all 160 shafts in 800 nonconsecutive days. Additionally, the IBR claims that drilling can occur year-round. However, according to the U.S. Army Corps of Engineers and Oregon Fish & Wildlife ...

The Hilltop mine is centred around two parallel, north-west trending lines of workings, about 70m apart, with its main historic gold production drawn from two shallow shafts on the southern line.

The City of Toronto says work on replacing an aged outfall shaft for the Ashbridges Bay Treatment Plant (ABTP) is about a third of the way complete. The old outfall shaft, which pumps water from the ...

TASC is our industry’s premier peer-to-peer automation stage where America’s shop leaders refine the art of metalworking and CNC machining. For conference speakers, it's also an opportunity to ...