Glacier National Park, along with Yellowstone, saved the grizzly from extinction in the Lower 48, providing the last bastions of protected and expansive core habitat when the species cratered to just a few hundred bears south of Canada in the 1970s. That number is over 2,000 now, thanks to the inspired work of a broad conservation movement and the resilience of the Great Bear itself. But the ultimate goal of a single, fully-connected population remains.