Hardrock mining on public land in northern Minnesota risks contaminating the Boundary Waters Canoe Area Wilderness, even with measures designed to head off those problems, a long-awaited federal study says.
The environment assessment released Thursday by the U.S. Forest Service buttresses the Biden Administration's quest for a 20-year moratorium on hardrock mining on more than 200,000 acres in Superior National Forest next to the Boundary Waters.
The Forest Service report was released following years of controversy and a concerted effort to keep its work secret. Launched at the end of the Obama Administration, the study was canceled in 2018 by the Trump Administration which declared it an unnecessary "roadblock" to minerals exploration in the Rainy River Watershed, which drains into the Boundary Waters. President Joe Biden restarted the study.