MCCALL, Idaho — A historic mining ... years of construction and 15 years of mining and ore processing. Perpetua would reroute the East Fork of the Salmon River through a mile-long tunnel.

Some potential risks associated with placer mining include toxic substances such as arsenic and mercury finding their way into salmon waterways, the alteration of channels and streams, or ...

Idaho rivers were once home to one of the country’s largest salmon runs. Today, however, those same salmon are headed towards extinction. For more than fifty years this decline has had far-reaching ...

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The Company has signed a contract with a contract miner (the "Miner") to complete the underground development and bulk sampling at the Washington Mine. The Miner has extensive experience working ...

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coho and sockeye salmon. A study led by Ryan Vosbigian, a research associate at the University of Idaho’s Fish and Wildlife Sciences Department, part of its College of Natural Resources ...

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