One site where Trout Unlimited has worked is the abandoned gold and silver Orphan Boy Mine near Alma, Colorado. Jason Willis, the director of the group's Western Abandoned Mine Lands Program ...

The Sterling Mine, the last operating mine in New Jersey, suspended large-scale commercial mining operations in 1986. Since ...

Starting in the early 20th century, industrial-scale mining operations have produced prodigious amounts of mineral commodities including gold, silver ... at least 140,000 abandoned hardrock ...

Abandoned mines across the Silver State With a nickname like the Silver State, it’s little wonder that Nevada’s mining lore dates back to even before the state joined the union in 1864.

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

Swaths of Pennsylvania and many other states are honeycombed with old, unstable mines that can cause the earth to suddenly give way and threaten people and property. That's what searchers in ...

Not every town gets to stick around forever. Some start with a bang—gold rush fever, a mining boom, a railroad deal—only to ...

Now a new and perhaps even more vexing concern has emerged: Highway sinkholes stemming from long-abandoned mines. Three sinkholes have opened up along I-80 in Wharton since late December.

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 ...