Quandary Peak, Mountain summit in Summit County, United States

Quandary Peak is the highest summit of the Tenmile Range in the Rocky Mountains, reaching 14,271 ft (4,350 m). Its broad east ridge rises through dark conifer forest to grey rock and brown scree streaked with snow, ending in a small white crown. The standard route is a class 1 trail from a trailhead about 1 mile north of Hoosier Pass.

Quandary Peak is the highest summit of the Tenmile Range, a range of the Rocky Mountains, at 14,271 ft. It lies in Summit County, Colorado, within the White River National Forest, about 6 miles south-southwest of Breckenridge. The Colorado Fourteeners Initiative reported 49,179 hiker days on the peak in 2020, making it the state's most-climbed fourteener that year; parking problems at the trailhead led officials to introduce new parking policies in 2021.

Quandary Peak is a fourteener, one of Colorado's 54 summits above 14,000 feet, and the Colorado Fourteeners Initiative counted 49,179 hiker days here in 2020, making it the state's most climbed fourteener that year. The name Quandary comes from the mountain's appearance when seen from Breckenridge.

The standard route is a class 1 trail hike on the east ridge, starting from a trailhead about 1 mile (1.6 km) north of Hoosier Pass. In 2020 the peak recorded 49,179 hiker days, and crowding led local officials to introduce new parking policies at the trailheads in 2021.

The Cristo Couloir, a steep ski mountaineering line on Quandary Peak, draws expert backcountry skiers, while the gentle east ridge sees far less avalanche danger than many other fourteeners. In 2020 the peak recorded 49,179 hiker days, making it Colorado's most popular fourteener that year.