COLUMBUS, Ohio - Ohio Attorney General Dave Yost is suing the United States Gypsum Co. for nearly $17 million, accusing it of failing to maintain underground mines and causing dangerous sink holes ...

A U.S. District Court judge dismissed all federal claims against Clark County in the long-running legal dispute over development on the privately-owned Blue Diamond Hill gypsum mine near Red Rock ...

According to Yost, the holes opening up in Ottawa County are a direct result of USG not maintaining the mines that date back more than 75 years. Gypsum is mined and used for many purpose including ...

The case dates from 1965, when USG sold land to ODOT to build State Route 2 above the company’s underground gypsum mines. The purchase agreement required USG to maintain the integrity of the ...

The lawsuit says the United States Gypsum Co., on Sandusky Bay, failed to maintain underground mines that caused dangerous sinkholes near State Route 2, costing the Ohio Department of ...

OTTAWA COUNTY, Ohio — Ohio Attorney General Dave Yost announced Tuesday that he's suing a gypsum mining company for nearly $17 million for "failure to maintain" underground mines that led to ...

The Gypsum Wallboard segment mines and extracts natural gypsum rock, which is used in the manufacture of gypsum wallboard. The Recycled Paperboard segment processes paper fiber, water, and paper ...

BILLINGS, Mont.— The mining company Grupo Cementos de Chihuahua has withdrawn its plan for gypsum mining exploration in southern Montana’s Pryor Desert. The plan would have disturbed Jurassic Period ...