Castle Trail

 25 votes

3.9 Miles 6.2 Kilometers


1,740' 530 m


-0' -0 m


7,770' 2,368 m


6,031' 1,838 m



Avg Grade (5°)


Max Grade (14°)

All Clear

17 days agoUpdate

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

Mark Eller


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.


Rate Trail


3.6 from 25 votes

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Jun 4, 2017
May 17, 2017
Brian Unekis
Added in the tower trail at the top to make a lollipop. 7.8mi
May 17, 2017
RaĂșl Gross
Challenging climb; bumpy, semi-flowy descent
May 13, 2017
John Moore
Oct 20, 2016
Chris JD
Have not been on this trail in several years. There is a substantial amount of erosion making this trail more difficult than it has in years past. 6.2mi — 1h 23m
Sep 24, 2016
Alex Knight
Sep 16, 2016
Amelia Hight
Sep 6, 2016
Harrison Brown

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Trail Ratings

  3.6 from 25 votes


  3.6 from 25 votes
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in Colorado


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4,345 Since May 14, 2013
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All Clear 17 days ago

Getting forecast...

This is certainly a good climb. Besides the big steps it's not too technical. Seemed like there were plenty of spots to catch your breath and not have to stop. If you expect it to go up forever, it'll be over before you know it. The down hill is fun. Plenty of flowly speed, just a bit crowded. Oct 29, 2013

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

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