Trail Rider Pass – North Fork Crystal River loop from Snowmass Lake

If you're looking for a truly epic challenge and a quintessential Colorado alpine experience, the Trail Rider Pass – North Fork Crystal River loop from Snowmass Lake is a hiking guide must-do. This difficult 14.8-mile (23.8 km) route demands 4286 feet (1306 metres) of elevation gain over an estimated 9 hours and 39 minutes, making it ideal for experienced hikers with very good fitness seeking a high-reward adventure in the Snowmass Lake area.

What to expect on Trail Rider Pass – North Fork Crystal River loop from Snowmass Lake

This loop takes you on a journey through varied and dramatic terrain. You'll traverse spruce forests and expansive meadows, but the real highlight is the ascent to Trail Rider Pass. Expect grueling switchbacks as you climb 1,000 feet in a mile to reach the pass, which sits at over 12,400 feet. From this vantage point, you'll be rewarded with a breathtaking view of Snowmass Lake, often described as an emerald jewel, along with the North Fork of the Crystal River Valley and the imposing Maroon Bells. The route also features challenging sections like the very steep North Fork Cutoff, requiring sure-footedness and sometimes alpine experience.

Planning your visit

This is a high-altitude route, so be prepared for conditions that can be windy and cold, even on sunny days. River crossings are part of the journey, and some may lack bridges, potentially involving deep, rapidly flowing water, especially earlier in the hiking season. Due to its popularity as part of the Four Pass Loop, permits for camping in wilderness zones, including the North Fork Zone and Upper Snowmass Zone, are required and can be competitive to obtain. Plan your trip well in advance to secure necessary permits.

Trail details

• Distance: 14.8 miles (23.8 km)
• Elevation gain: 4286 feet (1306 metres)
• Difficulty: difficult
• Estimated time: 9 hours and 39 minutes