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blue Colorado Trail: Kenosha Pass to Lost Creek Wilderness Boundary

  3.8 ( 24 ) Favorite


13.1 mile 21.1 kilometer out and back
100% Singletrack


Ascent: 1,690' 515 m
Descent: -1,689' -515 m
High: 10,418' 3,175 m
Low: 9,525' 2,903 m


Avg Grade: 5% (3°)
Max Grade: 18% (10°)


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Well balanced singletrack with impressive views of endless aspen groves

Chuck McQuade

E-Bikes Not Allowed

Features -none-

Lost Creek Wilderness Boundary (No Bikes) is encountered 7 miles in from the Kenosha Pass parking lot.


This is a great, usually overlooked ride. It provides an alternative to its more famous counterpart across the highway (Kenosha Pass to Georgia Pass and West Jefferson).

There are a couple of tough climbs, but overall this ride is a great ride for the more novice mountain biker, and much easier than its counterpart across the pass. This ride contains great flow sections within aspen tunnels, a couple of great rock gardens and incredible views! The scenery is fantastic, especially during the fall season, as the area is smothered with aspen groves.

This is the tail end of Segment #5 of the Colorado Trail (Denver to Durango Direction) The majority of Segment #5 is in legal Wilderness (No Bikes), however the section that isn't provides an excellent out and back.

Need to Know

The Kenosha Pass area is definitely not a secret. During the peak aspen gazing season especially on weekends, both parking lots can be full and trying to rip along this trail can be more work than fun when it's busy.


The smooth singletrack begins near the East Kenosha Pass parking lot. If the parking lot is full, one can park on either side of the road at the Kenosha Pass parking lot.

Enjoy the fast flowing singletrack for the first few miles through aspen tunnels and alpine meadows. Don't go too fast or you'll miss the vast views of the South Park basin off to the west. A little over two miles in you'll get several miles of fast downhill. There's a bridge to cross over Johnson Creek before a slight climb which precedes another downhill section leading to the Wilderness Boundary.

At this point bikes are not permitted so turn around and enjoy the ride back. The return will indeed be more of a climb back to the pass, but this only means more time to savor the views.

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Jun 30, 2019
Alex Larroc
Trail was in great condition. Downed tree at about mile 4. Lot fairly empty at 9:30. Packed at 12:30. 13.1mi — 9h 30m
Jun 7, 2019
Kayleen Castelli
First hill, worst hill. First alpine ride of 2019 8mi — 1h 30m
Jun 7, 2019
Matt Castelli
Flowy n clean 8mi
Oct 14, 2018
Anna Gasiewicz
Really scenic. Has a few nice climbing sections 13mi — 2h 30m
Sep 21, 2018
Neil Hanson
We rode the first 3.5 miles. Stellar views! We talked about making a full day next time and going all the way down to lost creek.
Sep 20, 2018
Jerry Weiss
Sep 18, 2018
Sandra G
Sep 16, 2018
Clark Sperry
Perfect Aspens. 13.1mi

Trail Ratings

  3.8 from 24 votes


in Park County


  3.8 from 24 votes
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in Park County


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