The Pegasus Foundation has been working since 1998 to protect the bison of Yellowstone National Park, located in northwest Wyoming on the Montana border. These bison are protected inside the Park. But once outside Yellowstone borders, they can be shot and killed by the Montana Department of Livestock because of a perceived threat of bison spreading brucellosis to cattle. The Foundation has provided support to the Greater Yellowstone Coalition and the Buffalo Field Campaign, two organizations working to save Yellowstone’s bison.