At 13,804 feet, Gannet Peak is the highest mountain in Wyoming, being 34 feet higher than the Grand Teton. It is also one of the most isolated and difficult peaks to reach.

The approach crosses alpine tundra before dropping into the forested Dinwoody Canyon, and then climbs to the base of Dinwoody Glacier.

Perched on the Continental Divide, flanked by five glaciers, and surrounded by the Bridger and Fitzpatrick Wilderness areas, an ascent of Gannett Peak is always a challenge. Unlike much of the climbing in the Wind River Range, Gannett is a snow climb requiring skill with an ice axe. The route ascends Dinwoody Glacier to Gooseneck Glacier, tackles the Gooseneck Gulley, and proceeds up the long ridge to the massive summit. The view is among the best in Wyoming.

Exum recommends at least six days for an expedition to Gannett Peak. If you have more time, consider extending your trip to seven or more days for rest, bad weather days, fishing, ascents of satellite peaks, or more difficult routes on the mountain.