https://apnews.com/5baafe8ea838148cac43cca02194e361

ANCHORAGE, ALASKA (AP) — A proposed gold and copper mine at the headwaters of the world’s largest sockeye salmon fishery in Alaska would cause “unavoidable adverse impacts,” the U.S. Army Corps of Engineers said in a letter to the developer released Monday.

The corps is giving Pebble Limited Partnership 90 days to come up with a mitigation plan for thousands of acres and nearly 200 miles of streams to secure a key federal permit to proceed. Once filed, the corps said it will decide if the plan for Pebble Mine is sufficient, David Hobbie, the corps’ regional regulatory division chief said in a letter to James Fueg, vice president for permitting at the partnership.