Chapman Drive

3.50 out of 5
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↑ 1,200 ft
↓ 100 ft
elevation (ft)

Trail Description
About this trail
A somewhat steep 940 ft elevation gain climb up the backside of Flagstaff Mountain along a disused, double track, 1930's era Civilian Conservation Corps dirt road. Highlights include several vintage stone bridges and views north towards Longs Peak and Betasso Preserve... Also is a great alternative route to Walker Ranch from Boulder when combined with the west end of the Boulder Creek trail and Flagstaff road.
Trail and trail head were opened to the public January 2013. Downhill access granted late April 2013.
added by nejmensiGramcounter
Trail Features
Trail features
  • Lift Service
  • Drinking Water
  •   Night Riding
  • Pump Track
  • Restrooms
  • Winter Fat Biking
Directions to Trailhead
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Trail Q&A
Rider Questions


Q: Is this a good trail for a gravel bike? -loranbriggs

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Recommended Trails
Recommended Trails
Betasso Preserve
Local Info & Nearby Trails
Trail Check-ins
Trail Check-ins
what's this?
Recent Trail Check-ins     (103 total check-ins)
  Brooke Brown   on Oct 14, 2019
  jimmyreese   on Sep 25, 2019
  Mark Perry   on Aug 19, 2019
  sergiophoto   on Aug 10, 2019
  Austin Baker   on Jul 31, 2019
Photo & Video Gallery (6)
Trail Photos & Videos (6)
Reviews (6)

Granny Gear

November 23, 2016
Review: Trail is just OK. Great trail to use if you are trying to get acclimated to the elevation or want to work on your ascending stamina - not skills as previously noted by others this is a jeep road / double track loaded with switch backs but no obstacles.

July 7, 2016
Review: The trail is closed until fall 2016 but that doesn't mean you can't ride it anyway. If you go in the evening (I went at 7pm) there is nobody anymore. All you have to do is to jump over a fence which takes 10 seconds. The trail climbs up with a moderately steep incline but there are no technical sections, all totally flat. On my way down I took the Tenderfoot trail which actually is a pure hiking trail, no bikes allowed. But that one is closed as well right now, so you won't piss off anybody here right now and it adds a few very sweet technical parts to the trail. 5 miles round trip.

May 19, 2014
Review: Usually a great trail, but it was roughed up in the floods. The trail now has a 3-4 ft rut through the middle, caused by the water. Would still recommend, as it's a great warm up from half flagstaff to betasso, but the trail is closer to a blue until they're able to fix it up.

Similar Trail: Betasso

Bunny Hop

October 15, 2013
Ben Sloman Bunny Hop  
Review: Its a jeep track, i like to ride it from home in boulder, up the canyon then up chapman and back down again, the ride up is moderate, good views from the top especially if you add the little extra ride to the amphitheater then back all the way down


May 31, 2013
alskoj Gnarly  
Review: You can start this trail from Boulder Canyon Dr. as an out and back or as a shuttle from Flagstaff Summit Road which is off of Flagstaff Road. It's not a true singletrack but it's new and if you're in the Boulder area you should definitely ride it. It's near Betasso which is another recommended Boulder trail.

Similar Trail: Betasso


May 3, 2013
nejmensi Gramcounter  
Review: A welcomed addition to Boulder's ever growing trail system! While not necessarily new to local hikers or trail runners, it has only recently (January 2013) been opened to cycling and equestrians along with a new formal trail head and parking lot at its base... The trail is straightforward. No fancy singletrack here. Just an old abandoned dirt road that varies between semi-singletrack and double track along its lower points and transitions to full double track about halfway up. The climb can be steep and sustained in spots, but nothing stringent by local standards. Depending on fitness the ascent takes anywhere between 40 - 15 minutes. Descent, 5 minutes. The charm of the trail lies in its isolated quietness. One really feels alone here. The elaborate old Depression-Era stone bridges near the base only add to the mood. Wildlife is also abundant. Don't be surprised if you encounter deer, turkey, pheasants or evidence of bears and mountain lions. At the summit consider biking the extra distance to the Realization Point/Sunrise Amphitheater overlook. The views alone are worth it! As a local the biggest advantage of the trail is a new way to access Walker Ranch. Bike up Boulder Canyon, then Chapman Dirve/Flagstaff, do a Walker loop or two and head home via Flagstaff (or vice versa). Fun new climb and highly recommend...

Kudos to the City of Boulder, the Boulder Mountain Bike Alliance and OSMP West TSA for agreeing to open this to the public after years of discussion and wrangling...

Similar Trail: Magnolia Drive

Trail Conditions
Trail Conditions          < / > embed