Flagstaf, Ariz. • The U.S. Supreme Court won’t review an Obama-era action that put land around the Grand Canyon off-limits to new mining claims, ending the legal battle as environmentalists keep a close eye on actions by the Trump administration that they fear could lead to more access for the mining industry.
The Obama administration put about 1,562 square miles outside the boundaries of the national park off-limits to new hard rock mining claims until 2032. The 20-year ban was meant to slow a flurry of mining claims over concern that the Colorado River — a major water source serving 30 million people — could become contaminated and to allow for scientific studies.