Tenmile Range

Quandary Peak is the highest summit of the Tenmile Range in the Rocky Mountains of North America and is the most commonly climbed fourteener in Colorado. It has nearly the same elevation as Castle Peak and Mount Blue Sky. It lies in Summit County and within the White River National Forest about 6 miles (10 km) south-southwest of the town of Breckenridge. The standard route up Quandary Peak is a trail hike (class 1), starting from a trailhead about 1 mile (1.6 km) north of Hoosier Pass on the east side of the peak. Hence it is a popular fourteener to climb because of the relatively easy ascent and its proximity to Denver and Breckenridge. Quandary Peak is also popular with backcountry skiers and snowboarders. The gentle ascent makes for an easy climb from the east with less danger from avalanche than on many other fourteeners. The other slopes of the peak are steep and appeal to expert backcountry skiers. One such steep ski mountaineering route is the Cristo Couloir. In June 2021 the Colorado Fourteeners Initiative announced that Quandary Peak was Colorado's most popular 14'er in 2020. The Initiative's data indicated that the peak saw 49,179 hiker days in 2020. Its popularity in recent years has caused serious parking problems at the trailheads, prompting local officials to initiate new parking policies.

Cristo Couloir, Quandary Peak, is a 2,575 feet (785 m) couloir located on Quandary Peak that stretches from just above the Blue Lakes Dam to the summit at 14,265 feet (4,348 m). It is a popular ski mountaineering descent in the spring climbing season (April through June, depending on weather and snow conditions). The ascent can be accomplished by an experienced mountaineer in 3–5 hours and the ski descent in 1–2 hours. Cristo Couloir is actually closer to one mile in length with elevation gain of over 2,000 ft . The ascent from the base parking lot below the dam is about a mile and 1/2 with a total elevation gain of approximately 2,500 ft.

El Jebel is an unincorporated community and a census-designated place (CDP) located in and governed by Eagle County, Colorado, United States. The CDP is a part of the Edwards, CO Micropolitan Statistical Area. The population of the El Jebel CDP was 4,130 at the United States Census 2020. The Carbondale Post Office (ZIP Code 81623) serves El Jebel postal addresses.

North Star Mountain is a 13,614-foot (4,150 m) mountain summit on the shared border of Park County and Summit County, in Colorado, United States.

Fletcher Mountain is a high mountain summit in the Tenmile Range of the Rocky Mountains of North America. The 13,958-foot (4,254 m) thirteener is located in Arapaho National Forest, 8.1 miles (13.0 km) southwest by south (bearing 215°) of the Town of Breckenridge in Summit County, Colorado, United States.

Atlantic Peak, elevation 13,835 ft (4,217 m), is a summit in the Tenmile Range of central Colorado. The peak is southwest of Breckenridge in the Arapaho National Forest. Its summit is visible close by to the northwest from the summit of Quandary Peak, a popular 14er in Colorado. It is often hiked together with nearby Pacific Peak.

Pacific Tarn is a small lake located in the Colorado Rocky Mountains in the United States. It is notable for its 13,420 foot (4,090 m) elevation, making it the highest lake in the United States whose name is recognized by the United States Board on Geographic Names, surpassing other lakes such as Hawaii's Lake Waiau on Mauna Kea, and California's Tulainyo Lake near Mount Whitney. The lake sits atop the broad eastern ridge of Pacific Peak in the Tenmile Range. Efforts to name the lake were spearheaded by Carl Drews, a Boulder, Colorado resident who organized an expedition to the lake in 2002 to measure the size, depth and water chemistry. The lake remained unnamed until January 8, 2004, when the United States Board of Geographic Names officially approved the name Pacific Tarn for the lake.

Pacific Peak, elevation 13,957 ft (4,254 m), is a summit in the Mosquito Range of central Colorado. The peak is southwest of Breckenridge in the Arapaho National Forest. Its long east ridge is prominently visible across the valley to the north when hiking Quandary Peak, a popular 14er in Colorado. It is often hiked together with nearby Atlantic Peak. Pacific Tarn, the highest officially named lake in the United States, lies high on the eastern flank of the peak.

Wheeler Mountain is a 13,690-foot (4,173 m) summit in Summit County, Colorado, United States.

Crystal Peak is a high mountain summit in the Tenmile Range of the Rocky Mountains of North America. The 13,859-foot (4,224 m) thirteener is in White River National Forest, 5.9 miles (9.5 km) southwest (bearing 220°) of the Town of Breckenridge in Summit County, Colorado, United States.

Peak 10, elevation 13,640 ft (4,157 m), is a summit in the Tenmile Range of central Colorado. The peak is southwest of Breckenridge in the Arapaho National Forest. The lowest part of Peak 10 is serviced by Breckenridge Ski Resort's Falcon SuperChair.

The Mosquito Range (elevation approximately 14,000 ft) is a high mountain range in the Rocky Mountains of central Colorado in the United States. The peaks of the range form a ridge running north–south for roughly 40 mi (64 km) from southern Summit County on the north end, then along the boundary between Lake and Park Counties. The ranges forms a high barrier separating the headwaters of the Arkansas River near Leadville from South Park and the headwaters of the South Platte River near Fairplay. The highest peak in the range is Mount Lincoln at an elevation of 14,286 ft. Other fourteeners in the range are Quandary Peak (14,272 ft), Mount Bross (14,172 ft), Mount Democrat (14,148 ft), and Mount Sherman (14,036 ft).