Disappointment Peak, Mountain summit in Grand Teton National Park, United States

Disappointment Peak is a mountain summit in the Teton Range, inside Grand Teton National Park in Wyoming. It sits within the Cathedral Group, a cluster of rocky peaks, and its faces offer multiple climbing routes of varying difficulty.

In 1925 four Colorado climbers led by Phil Smith, later the park's first ranger, set out for the Grand Teton but stopped at a 450-foot drop to the saddle. After a failed rappel they named the peak Disappointment Peak, then learned they had made its first ascent.

The peak's name comes from the 1925 party led by Phil Smith, later the park's first ranger, who mistook it for the way to the Grand Teton. Many routes to the ten highest Teton summits begin by crossing its lower slopes, and the peak is visible from almost everywhere in Jackson Hole. Because it stands in front of the Grand Teton, it looks like the range's highest summit from a distance and is often confused with it.

Most climbers start from the Lupine Meadows trailhead, and stopping at the Jenny Lake Climbing Ranger Station before heading up is a good way to get current route and safety information. A valid Grand Teton National Park entry pass is required to access the area.

The southern buttress of this peak holds over a dozen multi-pitch routes on rock that is considered unusually solid for the range. This makes it a destination in its own right for technical climbers, not just a warm-up for the Grand Teton next door.