President Joe Biden's administration is seeking a 20-year moratorium on mining in Superior National Forest near the Boundary Waters Canoe Area Wilderness, restarting a process that started, and stopped, under previous administrations.
The U.S. Department of Interior and U.S. Department of Agriculture — which together regulate mining — said in a joint statement Wednesday that they want to protect Minnesota's Boundary Waters, which they called a "unique natural wonder."
The Forest Service has applied to the Bureau of Land Management for a 20-year mineral withdrawal of more than 200,000 acres of federal land in the greater watershed that includes the Boundary Waters. Such a withdrawal of land puts a moratorium on new mining permits and leases. Only Congress can enact a permanent ban.
As part of the action, the Forest Service will restart a previously canceled study of the environmental, cultural and economic impacts of mining near the Boundary Waters.
Notice of the withdrawal request is to be posted in the Federal Register shortly, triggering a 90-day public comment period. A final decision could take two years.
It is unclear what impact the withdrawal process or moratorium would have on the $1.7 billion Twin Metals copper-nickel mine that Chilean copper king Antofagasta wants to build next to the Boundary Waters. The project has union support, but the hardrock mine is vehemently opposed by environmental groups who say it will pollute the area's pristine water with toxic sulfide.
The company already holds two crucial federal mineral leases that were renewed under the Trump administration after being canceled by the Obama administration.
The Interior Department confirmed Wednesday that a proposed mineral withdrawal does not affect existing leases.