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Castle Trail

 3.6 (40)
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Map Key

3.9 Miles 6.2 Kilometers


1,740' 530 m


0' 0 m



Avg Grade (5°)


Max Grade (14°)

7,770' 2,368 m


6,031' 1,838 m


Shared By Mark Eller


Minor Issues 34 days ago
Icy - 80% clear, death ice here and there but otherwise good History

Getting forecast...

Not a super technical climb but nonetheless demanding due to the constant grade and obstacles.

Mark Eller

Dogs Unknown

Features eMTB allowed

Occasionally closed in muddy/wet conditions. Popular with hikers, and Jefferson County rangers have been known to ticket riders who exceed 15 MPH or ride aggressively.


From the Mt. Falcon parking lot, you'll get a minimal warmup before the long grind on the Castle Rock trail begins. The grade isn't too steep but there are enough water bars, tight switchbacks and rock fields to make this a demanding climb.

About halfway up, a hard lefthand turn (with just a touch of tree shade) offers a brief respite before the climbing kicks in again. Then it's more grinding in small gears to the top. It's challenging to stay on the bike the entire time not because the technical challenge is super high but simply because of the relentless climbing and moderate obstacles that just keep coming.

A fit rider keeping the hammer down will need about 30 minutes (give or take) to reach the stone shelter. At a conversational pace, or with some breaks, the ascent could take an hour or more.

This trail continues all the way down to the other parking lot on the west side of the system at Mt. Falcon road, but most use Castle Trail to connect to the other great singletrack in the area.

From the stone shelter, continue on the Meadow trail to reach Parmalee and other Mt. Falcon singletrack. Or turn around at the shelter for the downhill leg just keep an eye peeled for uphill traffic and give yourself enough time to brake/yield on the sometimes loose surface.


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Your Check-Ins


Dec 15, 2018
andy hatch
Relentless uphill, by super fun decent, never too technical on the way down or up. Flowy for the front range. 6.4mi
Aug 26, 2018
Faruk Ramovic
Aug 17, 2018
Faruk Ramovic
Aug 11, 2018
Eric Hall
Aug 10, 2018
Greg Gowen
Jul 16, 2018
Greg Gowen
Jul 13, 2018
Greg Gowen
Jul 10, 2018
Greg Gowen

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Trail Ratings

  3.6 from 40 votes


  3.6 from 40 votes
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in Colorado


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5,993 Since May 14, 2013
Intermediate/Difficult Intermediate/Difficult

Don't believe anyone that tells you this is not a technical ride. There are steep water bars with blind turns thrown in and rock gardens coupled with steep climbing. Big time lung buster and the downhill is harrowing and non stop from the jump. Jul 2, 2017
Walked a good amount of the uphill, as they are pretty technical. The downhill is a classic, non-stop grip-it-and-rip-it type ride. Very fast w/ some great drops and turns. Not pedaling once on the way down is well worth the difficult (albeit short) climb. May 9, 2018
Castle Trail will push even a fit rider to stay in the saddle for its entire length. Numerous water bars, rock gardens, and loose rock / dirt will keep you on your toes. It starts to feel relentless about halfway up (similar to Chimney Gulch near Golden) but is worth the effort. Lots of great trails up top, and can be connected into a nice 20-mile loop with Lair 'O The Bair for a lengthier ride. This trail is VERY popular with runners / hikers, so come early if you want to avoid having to compete with lots of foot traffic, especially on the downhill. Sep 24, 2018

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