ANCHORAGE, Alaska -- Avid sportsman Donald Trump Jr. said Tuesday on Twitter he opposes the Pebble Mine project, as the Trump administration considers whether to issue a key permit for construction.
Retweeting a post calling on the federal government to block the copper and gold mine, Trump Jr. said the Bristol Bay region is too important to put at risk.
"As a sportsman who has spent plenty of time in the area I agree 100 percent. The headwaters of Bristol Bay and the surrounding fishery are too unique and fragile to take any chances with," Trump Jr. tweeted.
Trump Jr. has hunted wildlife in Alaska and fished in the Bristol Bay region, according to news accounts.
Also on Tuesday, Sen. Dan Sullivan, R-Alaska, signaled concern about a recently completed environmental review of the project.
"My staff and I are continuing to review the Army Corps of Engineers Final Environmental Impact Statement, but I am increasingly concerned that (the final review) may not adequately address the issues identified in the draft (review) regarding the full risks of the project as proposed to the Bristol Bay watershed and fishery," Sullivan said. "I am also continuing to make sure that Alaska's voices are being heard on this project at the highest levels of government -- including the White House."
Last month, the U.S. Army Corps of Engineers released a final environmental review of the mine proposal that critics fear set the stage for the Trump administration to approve a key construction permit.
But the agency has yet to decide on whether to issue the permit. That decision could come as early as this month.
Groups opposed to the prospect, which would be built near headwaters of the valuable Bristol Bay salmon fishery about 200 miles southwest of Anchorage, have said they'll call on the Environmental Protection Agency to stop the project.
Trump Jr.'s tweet came in reply to a post from Nick Ayers, former chief of staff to Vice President Mike Pence.