Federal employee retirements are processed using paper, by hand, in an old limestone mine in Pennsylvania. 700+ mine workers operate 230 feet underground to process ~10,000 applications per month, ...

Now, it will convert that site to a 257-acre underground mine with somewhere between three and seven portals. Neiswonger will be extracting Benwood limestone using a room and pillar method ...

For 16 years, the Buffalo National River has denied explorers access to Arkansas’s longest cave and hundreds of others. Some ...

“Most Kentucky caves are dissolved out of solid limestone ... a pillar of light was piercing the pile—the bulb around Collins’s neck illuminating the way. Soon, there was enough room to ...

Gainwell Engineering (GEPL) has made a significant contribution to India’s mining industry by supplying Eastern Coalfields with the country’s first domestically produced room and pillar mining ...

Other major projects being supported by the Bank include a petrochemical fertilizer plant in Angola, a titanium dioxide pigment plant in South Africa and the feasibility study for the development of a ...

Rumors are swirling about Pennsylvania’s Iron Mountain limestone mine. According to its website, Iron Mountain West Pennsylvania (WPA-1) is a data center located 220 feet ...

Built in 2008 and designed by renowned Morristown-based architect James Paragano, this sleek property features 12-foot ceilings on the first floor, three living room spaces, a spacious chef's ...

Export officials are excited about creation of a historical area showcasing the borough’s mining history. A $139,000 state ...