Wyoming

Wyoming's mule deer migrate some 150 miles every year.

If you think of wildebeest in the Serengeti when you think of large mammal migrations, start thinking a little closer to home. Scientists have discovered that the longest known migration of mule deer—an incredible 150-mile journey between winter range and summer range—occurs every year in western Wyoming. The deer move from low-elevation winter range in the Red Desert near Interstate 80 to the high mountains surrounding the Hoback Basin in northwestern Wyoming. They spend some four months on their journey, negotiating sand dunes, lake and river crossings, multiple highways, and more than a hundred fences.

Biologists discovered the phenomenon when they placed GPS collars on twelve deer in the Red Desert in 2011 and followed their movements through spring 2013.

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How mule deer benefit from sage grouse conservation.

by Diana Rupp

Mule deer in many parts of Wyoming migrate from  summer range in the high country to lower-elevation winter range on sagebrush flats, where they are often displaced by development.

 

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Diana's pronghorn

Diana Rupp shot this pronghorn near Devil's Tower in Wyoming with Trophy Ridge Outfitters in October 2010.

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