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A non-technical and fun trail with rounded switchbacks so you can keep your speed up.

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8,576' 2,614 m


8,294' 2,528 m


294' 90 m


285' 87 m



Avg Grade (3°)


Max Grade (14°)

Dogs Leashed

E-Bikes Unknown

Features Drops/Jumps · Views


The Upper Loop trail is best when ridden clockwise due to grade, switchbacks, and climbing in the shade. It's a fun and punchy contour loop with many technical rocky sections that will test your bike handling skills. Make no mistake, the trail makers designated this "more difficult" for a reason. If you've yet to master the half-back-pedal, there are plenty of opportunities to practice it to avoid pedal strikes when going over technical spots.

For more advanced riders, COMBA purposely built this great trail for mountain biking and created bermed switchbacks to let you keep your speed up. For riders looking to improve their skills, this loop helps you understand that in many cases, speed can be your friend. Modern trail bikes with slack geometry can handle all the sections. You just need to conquer the mental aspect of riding things that look difficult. And remember, always look where you want to go because you'll go where you look.

It gets very quiet and beautiful once you get around to the back of North Floyd Hill and into the lodgepole pine area. There's a short descent followed by a few steep switchbacks on the way up as you gain the ridge again.

COMBA is building more trails and branches of trails throughout this loop. Occasionally, you may find one of these branches that end and you have to ride back to the main trail. Ride with someone who is familiar with the trails or bring MTB Project so that you can stay on course. Or, you can always trust yourself and have fun getting lost. Every trail has a similar feel to it and they're all fun.

About two-thirds of the way around the loop (riding clockwise), you'll come to the trail intersection with The Sluice trail. Generally, there will be a few bikers in "the lobby"(an open, flat area before the start of The Sluice) tightening their equipment and preparing for their charge down this Downhill-only trail.

If you decide to skip The Sluice and continue on the Upper Loop trail you'll find more of the great features you've enjoyed as part of the earlier part of this trail as it mostly descends back toward Lower Loop. Be aware, many riders are riding up this section as it's the most direct way to get to The Sluice. Enjoy the rest of the roll down to the intersection with the Lower Loop. For the last section, you'll encounter a techie, steep, rock feature that drops down to the intersection with Lower Loop.


Shared By:

Robb Green with improvements by Peter Maloof

Trail Ratings

  3.9 from 35 votes


  3.9 from 35 votes
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Trail Rankings


in Colorado


6 Views Last Month
1,398 Since Aug 30, 2018
Intermediate/Difficult Intermediate/Difficult



Full review of the new Floyd Hill trails, as of June 2019.
Jun 17, 2019 near Idaho S…, CO
Riding one of the many line choices at the top
Sep 3, 2021 near Idaho S…, CO
Floyd Hill Mountain Biking // Best Trails Outside of Denver, Colorado
Nov 3, 2021 near Idaho S…, CO
New downhill trail at Floyd Hill, the "Sluice".
Sep 30, 2019 near Idaho S…, CO
Scenic overlook just off the upper loop.
Jul 12, 2019 near Idaho S…, CO
Riding down The Sluice at Floyd Hill!
Aug 30, 2023 near Idaho S…, CO


Current Trail Conditions

All Clear 2 days ago
Add Your Check-In


Jul 4, 2023
Shayne Bryant
1st SEND 2.1mi — 10h 35m
Sep 5, 2022
The short blue-black section of Floyd's loop is more black than blue. Its tight, techy, and can be higher consequences for mistakes. Quality, fun. 0.8mi — 0h 15m
Jun 20, 2022
Patrick Burns
Getting to the top this thing is laborious and circuitous CW, or brutally steep and technical CCW.
Apr 8, 2022
Atsuko Ohtake
Apr 24, 2021
Austin Imig
Fun trail in the woods
Oct 22, 2020
Jason McDaniel
Oct 7, 2020
Atsuko Ohtake
Jul 16, 2020
Caitlin G

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