Castle peak summit markers to commemorate your hike! Castle Peak is located in Colorado's Elk Range. Castle Peak is an excellent climb as a warm up at the beginning of the summer climbing season.
It is the highest peak in the Elks Mountain Range and the 12th highest in Colorado. The summit is about 15 miles (24 km) south of Aspen on the Pitkin–Gunnison county line. It is the highest point in both counties.
The best climbing months are June, July, August, September through the Montezuma Glacier, a permanent snowfield between Castle and Conundrum Peaks. There are two standard routes for ascent. The Northwest Ridge features a moderate snow climb followed by an easy ridge scramble. It should not be attempted late in the summer when the 200 feet (60 m) of loose dirt and scree meet the climber near the top of the Castle-Conundrum saddle. The Northeast Ridge features an easy snow climb, but slightly harder scrambling and route-finding once on the ridge.