Mule Deer Initiative

Wyoming Game and Fish Department

Biologists with the Wyoming Game and Fish Department in Gillette recently collared 35 mule deer does in the Rochelle Hills area southeast of Wright.

Wyoming Game and Fish Department

The Wyoming Game and Fish Department wrapped up the first part of its Upper Powder River Mule Deer herd habitat project. It's hoping to improve mule deer habitat in the southern Bighorn Mountains.

The doe traveled 92 miles farther than the longest mule deer migration route known.
Wyoming Migration Initiative


The longest mule deer migration route weaves across much of western Wyoming. Twice a year, deer travel 150 miles from the Red Desert over the Wyoming Range to Hoback Junction near Jackson. But in 2016, wildlife biologists tracked one doe—#255—trekking that distance plus an extra 92 miles, all the way into Idaho. Wyoming Public Radio’s Melodie Edwards sat down with the Wyoming Migration Initiative’s Director Matt Kauffman to hear the twists and turns of Doe #255’s epic journey. The question is, have scientists discovered a new migration route or is #255 just super spunky?

Earlier this month, a panel of biologists, hunters, ranchers and government agencies convened in Daniel to discuss the reasons for the continued drop in mule deer numbers. There were once over 500,000 mule deer in Wyoming but the population has plummeted to around 375,000. Wyoming Game and Fish wildlife coordinator Daryl Lutz was at the summit and he says it will take landscape-wide thinking to stop the decline.