Plans for a massive open-pit mine threaten wild salmon and bears at two of Alaska's wildest national parks.

Press Release

EPA Favors Mining Over Salmon, Parks and People in Pebble Mine Settlement

The Environmental Protection Agency (EPA) reversed its previous science-backed ruling surrounding the proposed gold and copper mine for the Bristol Bay region, just 15 miles from Lake Clark National Park…

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Lake Clark and Katmai National Parks and Preserves in Alaska are two of our wildest national parks. Lake Clark protects the headwaters of the Kvichak and Nushagak Rivers that flow into Bristol Bay, home to the world’s largest wild sockeye salmon run. Wild salmon feed generations of families in the region, play an essential role in the ecosystem and support the $2 billion fishing industry that anchors the local economy. Additionally, Katmai hosts one of the most incredible bear-watching opportunities anywhere on the planet.

But mining companies propose building a massive open-pit mine and accompanying infrastructure in the heart of the Bristol Bay region, dangerously close to these incredible national parks. The development, known as Pebble Mine, could decimate Bristol Bay salmon and threaten the wildlife that call these parks home. It also puts Alaska Native communities and Alaska’s fishing and tourism industries at great risk.

Pebble Mine’s phase one plan includes a pit one mile wide and a quarter-mile deep, which would destroy over 4,000 acres of wetlands and more than 21 miles of salmon streams. Over 1 billion tons of tailings — toxic residue from ore — would be stored behind high-risk dams and left in the pit after potentially 20 years of operations. In 2012, the Environmental Protection Agency warned that “mining the Pebble deposit would cause irreversible damage to one of the world’s last intact salmon ecosystems.”

Press Release

Irresponsible Pebble Mine Project Loses Major Investor

By terminating its investment, Northern Dynasty Minerals signals major blow to the Pebble Mine project in Bristol Bay

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In addition, the newest proposal also includes plans for a port and road between Lake Clark and Katmai National Parks and Preserves. Katmai bears who wander out of the park and preserve could be harmed by increased hunting, habitat fragmentation, traffic and pollution.

NPCA is deeply disappointed that plans for this mine could proceed under the current administration. Polls show that a majority of Alaskans oppose Pebble Mine and the threats it poses to the region. NPCA has stood with Alaskans for years, working to stop this dangerous proposal from becoming a reality. We remain adamantly opposed to the project and will continue to partner with allies and advocates to prevent the disastrous mine from harming this spectacular, untamed region of the country, its surrounding community, and its vibrant salmon and bear populations.


  • More than 15,000 Took Action to Stop Mine

    Oct 2017

    Park advocates sent letters to EPA Administrator Scott Pruitt asking him to stop the Pebble Mine and protect Bristol Bay and Lake Clark National Park and Preserve!

  • More than 11,000 Sent Comments Opposing Mine

    Jun 2018

    National park advocates nationwide sent comments to the U.S. Army Corps of Engineers telling it to drop the controversial Pebble Mine proposal and protect wild salmon and national parks.

  • Nearly 10,000 Park Advocates Opposed Pebble Mine in Comments

    Jul 2019

    Park advocates nationwide submitted comments to the Army Corps of Engineers telling the agency to drop its plans for the controversial Pebble Mine project.

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