For nearly a century, the curve of the Mississippi River just east of Scott City was a hotbed for limestone mining. In 1998, mining stopped. Now, production is back on as the new Grays Point Stone and ...

Rocky Mountain Industrials (RMI) was ordered to stop mining by the U.S. Department of the Interior in a Jan. 3 letter citing permit violations and a lack of evidence of market development. RMI, which ...

A Clarion County-based company has received the go-ahead to construct an underground limestone mine in Deemston. The state Department of Environmental Protection on Jan. 21 approved a permit for ...

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U.S. Sen. John Hickenlooper joined Glenwood Springs city councilors, Garfield County commissioners and members of the ...

Martin Marietta wants to expand its northern New Hanover County limestone quarry to meet surging demand. Environmentalists ...

Residents who live near a proposed limestone mine in Deemston Borough raised a number of concerns about air quality, dust, and other issues at a public hearing Monday at the East Bethlehem Volunteer ...

The New London Quarry became operational in 1938, 26 years before it was purchased by the Murphy family, of MCC Inc., to extract mainly dolomite, sandstone and limestone. Over the years, residents ...