**FILE** Bison graze in the National Elk Refuge near the Grovs Ventre Wilderness Area's Sheep Mountain, seen in the background, on April 24, 2002. (Associated Press)

Photo by: JOHN HEILPRIN

**FILE** Bison graze in the National Elk Refuge near the Grovs Ventre Wilderness Area's Sheep Mountain, seen in the background, on April 24, 2002. (Associated Press)