Steam shovels began to mine iron ore in 1891. Stripping coal since 1877, steam shovels began copper-ore excavation in 1896 and became standard equipment in quarry operations a decade later.

In 1955, the Ray mine completed a conversion from underground workings to open-pit mine operations. The father of open-pit mining, Daniel C. Jackling, had been involved in exploratory work at Ray ...

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Kindred Resort general manager Dan Dohner, left, and head of marketing Amy Kemp discuss the progress made on the resort on May 20, 2025. The development is reimagining the base area of Keystone ...