Montezuma Basin Road is just south of Aspen in the White River National Forest. The road starts at Waypoint 6 of the legendary Pearl Pass and takes you up to 12,800 feet, near the base of Castle Peak, which is Colorado's ninth tallest 14er (14,279 ft). The road was used as mining access to Montezuma Mine, which operated from 1879 to 1960. It also operated off and on as a ski resort from 1967-1977 with one snowfield and a tow rope.
This road isn't necessarily difficult, but you must be fearless as the road is comprised of many long, exposed segments of shelf road, with some of it being off-camber, which could send you tumbling down very steep, rocky slopes. From the base of Castle Peak, you can begin to hike this 14er. Make sure you take in all the amazing views of the area and imagine what it would be like to live here year-round in the early 1900s! As with other mines, please look but don't touch. Preserve this history for generations to come.
Trail Difficulty and Assessment
Exclusive for our All-Access Members
Easily identify whether the trail is stock friendly
or not.
View 14 specific concerns along the trail such as
height and width restrictions.
Upgrade from free to our All-Access Membership and get
every detail, waypoint, photo, and more on every single
trail guide.
When you are an All-Access member, our trail guides
come with a short video of the author running the trail
to give you a visual understanding of what to expect.
From Aspen, take Castle Creek Road south about 14 miles past the Ashcroft Ghost Town. Follow Pearl Pass Road to Waypoint 6, which is the Montezuma Basin Road junction.
According to the MVUM, this trail is open for the season! This trail may be impassable due to snowpack so please plan accordingly and bring all necessary recovery gear.
Stock 2008 Rubicon
Made it up just a little past the tight switchback (waypoint 9) to 11,200 before snow and loose scree prevented further passage. Chain may have helped get a little bit further but the rest of the trail was fully snow covered. Snowy areas and a few small patches of ice on the way up but nothing that didn't have an easy line through. There were a few places that I had to make multiple attempts though. One more snowstorm though and I think this will be fully shutdown for the season.
Attempted Castle Peak from here but turned back at the top of the headwall.
Just ran Montezuma Basin Trail from Pearl Pass to parking lot at the end. 2014 Rubicon with 2 1/2 inch lift and 35s. Not technical at all - slow and steady. Never felt "in danger" on the shelf road. Used 4 high for safety but not needed for any technical aspect. Very brief mild off camber toward the end but nothing scary. Could imagine some issues with vehicles coming opposite directions as no room to pass or pull over for most of the trip, but very exposed so you can see the whole trip and traffic before you go and as you go. There are a few spots to pull over and stop if you decide to not go the whole way. Some people just drive part the way up, pull over and park, and then hike the rest of the way to climb Castle. We went to the end parking lot, Climbed Castle and Conundrum and then drove back down. 3 great camping spots between Pearl and the end - all at the beginning of the road before you hit tree line. I give the road a 4/6 rating just because of shelf road (not that narrow) and very brief mild off camber - 3/6 rating without those 2 aspects.
Made it all the way to the second "parking lot" and then hiked Castle Peak.
The trail is really rough, and was a lot of work for me and my 08 Subaru Forester, but I have a 2" lift, skid plates on everything important, and a rear torq locker.
Anything with solid axles should make it up this fine though.
Ask the author of a trail guide any questions you may have and
get a direct answer from the author and the community! One of
the many perks that come with an All-Access Membership.
John is a Colorado native who's been 4 wheeling since he got his first tacoma. His original goal of 4 wheeling was to get back into the campsites the Subarus couldn't quite get to. One trip after another, and now it's pretty much consumed all of his free time. He is currently living in Laporte, CO. When he is not coding for Trails Offroad or 4 wheeling, he also enjoys hiking, skiing, snowmobiling, and mountain biking.
By clicking "ACCEPT", you agree to be the terms and conditions of each
policy linked to above. You also agree to the storing of cookies on
your device to facilitate the operation and functionality of our site,
enhance and customize your user experience, and to analyze how our
site is used.