United States Lime & Minerals, Inc. manufactures and supplies lime and limestone products in the United States. It extracts limestone from open-pit quarries and an underground mine, and processes ...

Federal workers working in the limestone mine responsible for handling government ... and you would add to the the goods and services of the United States in a more useful way.” ...

As demand for energy skyrockets amid an AI push, uranium miners are ramping up domestic production of the mineral used to ...

Elon Musk on Tuesday referenced an old limestone mine where federal government employee ... would add to the goods and services of the United States in a more useful way." The converted mine ...

(KDKA) -- An old limestone mine operated by Iron Mountain that's located just north of Pittsburgh in Butler County is drawing the attention of Elon Musk. The United States government's Office of ...