Billings Gazette A cow elk shot in Grand Teton National Park has tested positive for chronic wasting disease, according to the Wyoming Game and Fish Department. This is the first elk to test positive for CWD in northwest Wyoming that lives in close proximity to winter feedgrounds. "It's a sad situation," said Bruce Smith, who worked at the National Elk Refuge near Jackson for 22 years and wrote the book "Where Elk Roam: Conservation and Biopolitics of Our National Elk Herd." "It was just a matter of when, not if," he said, adding that if there's one infected elk, there are many others that haven't yet been identified.