The cool, shallow waters of Alaska's Bristol Bay are surrounded by tundra, crisscrossed by rivers, and dotted with lakes large and small. Bears, wolves, seals, and whales flourish in this nearly untouched ecosystem, all drawn by the same lure: tens of millions of thrashing salmon, charging upstream to spawn. Huge salmon runs are the linchpin of this ecosystem, supporting valuable commercial fisheries, Alaska Natives, and a vast array of wildlife. Tragically, the whole system could be put at risk if giant mining companies are allowed to pursue their narrow interests. NRDC is fighting to preserve this pristine ecosystem.