Summit 2026 – Mt Antero - West Slope

All participants and leaders are REQUIRED to sign the State of Colorado's liability waiver. Please click here to fill out the waiver.

Participants will register for their preferred 14er through the Colorado Mountain Club website, where they will be placed on a waitlist for their chosen peak (you may join more than one waitlist). From there, trip leaders will reach out to gather more information about each participant's experience level and interests. For trips where the waitlist exceeds the allotted group size, participants will be selected by lottery.

• Not sure which 14er to sign up for? Visit our Blog "So you want to hike a 14er?" for more details about selecting the right 14er for you!
• Feel free to use information from 14er.com from to learn more about the trail and what to expect. 

What to expect from this hike: Mount Antero (14,276') via the West Slopes is a challenging high-alpine ascent known for its rich gemstone deposits, including one of the highest concentrations of aquamarine in the United States. The route follows the rough Baldwin Gulch 4WD road through a landscape shaped by historic and active mining operations before climbing the mountain's south ridge to the summit. Named after Chief Antero of the Uintah band of the Ute, the peak offers expansive views but requires determination and sure footing.

This is a strenuous, high-altitude hike and is not suitable for beginners. The route from the 2WD trailhead is 15.5 miles of relentless uphill, and 5,200ft elevation gain. There are no water sources on the route either.

This hike is best suited for experienced hikers who regularly engage in endurance activities such as hiking, trail running, backpacking, several times per week. Anyone uncomfortable with prolonged exposure to rocky terrain, talus hopping, or sustained effort at high altitude should consider a less demanding objective.

Participant required skill & fitness:  Participants should be capable of hiking continuously for 8–12 hours at elevations above 12,000 feet while carrying a daypack. Hikers should be comfortable maintaining a pace of 2–2.5 mph on the road approach and 1–1.5 mph on steep, rocky terrain during the final ascent.  Because this is a very long hike with significant elevation gain, participants should have recent experience with long mountain hikes (7+ miles and 3,000+ feet of elevation gain), be confident navigating loose rocks and boulder fields, and possess good balance and agility. The route includes a Class 2 scramble near the summit, requiring the use of hands for balance and movement over uneven terrain.

Requesting permission:
Because this is a long hike with significant elevation gain, you must have hiked other 13ers or 14ers this season. When you request leader’s permission, please indicate what hikes you have completed this season with over 3,000’ feet of elevation gain and climbing above 13,000’. Include mileage, elevation gain, time taken and date (or planned date). For safety reasons, we will hike together, so it is essential that everyone has adequate fitness. When requesting permission, please indicate if you have a 4WD vehicle (no AWD) with high clearance and if you would be willing to help transport some participants higher up the road. If we have enough 4WD vehicles, we could cut down some mileage and elevation gain. 

Registration Process
Participants can register for their preferred 14er through the Colorado Mountain Club website, where they will be placed on a waitlist for their chosen peak. From there, trip leaders will reach out to gather more information about each participant's experience level and interests. For trips where the waitlist exceeds the allotted group size, participants will be selected by lottery.

For questions about your trip, please reach out to Annamari at ad121611@gmail.com. For general questions about the Summit 2026 project or any relate event, please reach out to summit2026@cmc.org.