It doesn’t take much for a century-old mine shaft to cave in around you. Or for the mercury, lead or arsenic leftovers to leech into the Silver State’s already strained groundwater supply. That’s why, ...

The ghosts of the Silver State’s mining roots aren’t just spooky — they’re a serious environmental hazard. About half a million abandoned mines lie untouched across America, polluting waterways and ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Illustration by Julia Wytrazek / Getty Images There are about 500,000 abandoned mines in ...

There are about 500,000 abandoned mines in the United States, according to the Mine Safety and Health Administration, and these long-forgotten facilities can pose a variety of risks to people unaware ...