Once bustling with the chatter of miners and the clinking of pickaxes, Colorado's abandoned mining towns stand today as silent witnesses to a time of great ambition and bitter disappointment.

But the old mines also left behind a legacy of trouble for today’s Westerners. Abandoned mines dot the Western landscape, polluting the region’s streams with acid mine drainage and connecting the ...

Scientists reveal how mountain lions, elk, and other animals are making use of these underground areas in Colorado. Image creditTIMOTHY ARMSTRONG ET AL. The American West is famous for the scale and ...

A large source of Colorado’s water pollution is abandoned mine waste, which Salidan Jason Willis, director of Trout Unlimited ...

There are about 500,000 abandoned mines in the United States ... In the gold rush state of Colorado, about "13,500 mine features have been closed so far," said Marketplace, and the state can ...

The Center of the American West’s team is actively working on perpetual mine management research and has published some of its findings in peer-reviewed formats.

There are as many as 500,000 abandoned mines nationwide — far ... said Professor Paul Santi from the Colorado School of Mines Geology Department. “If it’s dropping say, half an inch a ...

Energy Fuels struck an agreement with the Navajo tribal leaders to clean up Cold War-era abandoned uranium mines within the tribe’s ancestral territoryprovide financial compensation and alter ...