Cowin/Raisebor featured in Mining & Construction

Mining & Construction magazine (Mechanized Rock Excavation With Atlas Copco) featured Cowin/Raisebor in issue number 1 of 2015.

“On December 7, 2014, Raisebor, a division of Cowin & Company Inc., completed a 26-foot-diameter raise bore shaft to a depth of 1,440 feet, the largest diameter raisebor ever in North America, and appears to be the largest in the world.”