Laramie, WY – Chronic Wasting Disease has moved farther west in the state. A bull elk captured near the Ferris Mountains north of Rawlins has tested positive for chronic wasting disease. The elk was discovered east of Muddy Gap early this month. It marks westernmost point the disease has been found in Wyoming since its discovery more than 30 years ago. CWD is a fatal neurological disease that has been diagnosed in wild deer, elk and moose. Officials with the Wyoming Game and Fish Department say they believe the infected elk may be an isolated case. Officials had long believed that the disease was limited to southeastern Wyoming, but it's been turning up recently in other areas. Tom Rider is with the Game and Fish Department in Lander. He says he believes the elk may have wandered across the North Platte River by itself.