Documentary of proposed Pebble Mine in Bristol Bay, Alaska. Presented by Trout Unlimited.
At the headwaters of the Kvichak and the Nushagak Rivers in Bristol Bay - the two largest remaining sockeye salmon runs on the planet - mining companies have proposed to extract what may prove to be the richest deposit of gold and copper in the world. The film is a portrait of a unique way of life that would not exist if the salmon didn’t return with Bristol Bay’s tide.
The Pebble mine would require the world’s largest earthen dam to be built, some 700 feet high and several miles in length. The dam and 10-square-mile-wide containment pond are intended to hold between 2.5 billion and 10 billion tons of mine waste that Pebble would produce over its lifetime - nearly enough to bury the city of Seattle. Because the sulfide, or acid-generating nature of the Pebble ore body, the waste would require environmental treatment in perpetuity. Any release of mine waste into the surface or groundwater has the potential to harm Bristol Bay’s salmon runs.