In the heart of the historic Gold Rush area, Grass Valley is no stranger to legacy contamination from gold mines, but holding ...
Thousands of abandoned mines remain scattered across these vast landscapes, relics of the land and gold rushes of the 19th century ... a cave specialist and ecologist at Great Basin National Park in ...
With little attention in the media, except in a few Western states, former President Joe Biden on Dec. 19 signed the Good ...
In Pennsylvania, there are at least "5,000 abandoned underground mines." Many more states, including others in Appalachia, plus Nevada and California ... In the gold rush state of Colorado ...