Greater Yellowstone Ecosystem

The Greater Yellowstone Ecosystem is the last great intact ecosystem in the lower 48. As such, it preserves remarkable wildlife thriving in its strikingly diverse landscapes. From the unparalleled thermal features of Yellowstone National Park, to the mountain grandeur of Grand Teton National Park, both national parks have something for everyone to enjoy. Beyond the park boundaries, many national forests preserve a substantial amount of wilderness. The fifth-largest national forest in the country, the Bridger-Teton National Forest protects roughly 3.5 million acres, more than Yellowstone and Grand Teton National Parks combined. Within these boundaries are stunning mountain ranges, deep canyons, and flourishing wildlife. There’s a lifetime of discovery within the Greater Yellowstone Ecosystem!