Associated Press

JUNEAU — President Donald Trump’s eldest son agreed Tuesday with calls to block a proposed copper and gold mine near the headwaters of a major U.S. salmon fishery in southwest Alaska.

Donald Trump Jr. responded to a tweet by Nick Ayers, a former aide to Vice President Mike Pence and a senior adviser to the Trump campaign. Ayers, in his tweet, said he hoped the president would direct the U.S. Environmental Protection Agency to block the proposed Pebble Mine.

Trump Jr., in response, said: “As a sportsman who has spent plenty of time in the area I agree 100%. The headwaters of Bristol Bay and the surrounding fishery are too unique and fragile to take any chances with.”

This comes as the U.S. Army Corps of Engineers weighs a key permitting decision for the project, which is being pursued by the Pebble Limited Partnership. The Pebble partnership is owned by Canada-based Northern Dynasty Minerals Ltd.

An environmental review released by the corps last month stated that under normal operations, the alternatives it looked at “would not be expected to have a measurable effect on fish numbers and result in long-term changes to the health of the commercial fisheries in Bristol Bay.”

The review shows that Trump Jr. and Ayers are wrong, the Pebble partnership said in a statement, adding it is confident the corps will issue a final decision “in the next few months. We do not believe that the President will interfere with this statutory process.”

The EPA has said the Bristol Bay watershed supports the largest sockeye salmon fishery in the world and contains significant mineral resources.