A new tour of the famed Akiyoshido cave system here, one of the largest limestone networks in Japan, offers visitors the ...

Today, we went 500 feet underground as we were taken on an immersive and exhilarating tour of the Llechwedd slate caverns in Gwynedd.

Dr. Bill Roggenthen, a professor emeritus of geology at South Dakota Mines, has been reading the rocks at America’s Lab since ...

A decades-old program operated by NIOSH to detect lung disease in coal miners is one of the federal programs that have been ...