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green Perimeter Trail


22.2 mile 35.6 kilometer loop


Ascent: 333' 101 m
Descent: -332' -101 m
High: 5,333' 1,626 m
Low: 5,124' 1,562 m


Avg Grade: 1% (0°)
Max Grade: 4% (2°)


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Trail shared by Pete Sunden

A flat, mostly-gravel loop with cool wildlife.

Pete Sunden

E-Bikes Unknown

Features -none-

Family Friendly Mostly off-road trail riding with restrooms, animals, and no difficult climbs.

There is some construction but it is navigable on bicycle.


There are several free parking options just before crossing into the Rocky Mountain Arsenal National Wildlife Refuge (no bicycling inside of the Refuge allowed). If going counter-clockwise grab a number of gravel trails heading to the west that ultimately turn you north onto a paved section abeam Quebec.

Keep right at the trail's fork near the Quebec/2 intersection, back on gravel for the majority of the ride. Expect some gentle slopes. The northern and eastern sides offer some wildlife-viewing potential. Once you're heading south, you'll eventually wind up on the unmaintained Buckley Road.

After returning right at the parking lot near Pena Blvd on 56th Ave, you'll want to work your way to the opposite side of the road. You'll have some time on a wide, dirt shoulder that will eventually disappear. On the "wrong direction of travel" if riding west, there's a broad paved sidewalk.

Take 56th Ave to Central Park Blvd and turn right. There's a bike lane here that will eventually vanish in the construction areas, but you'll be able to piece your way back to your vehicle, some on roadway, some on gravel.

Overall, a nice and easy loop that has good training value for gravel. Keep an eye out for birds of prey and large land mammals.

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We need help with the following missing trail information:

Need to Know, Dogs Allowed, Features, E-Bikes Allowed


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Jan 15, 2019
Einer Arceo
Sep 25, 2018
Adrian Belinne
Sep 20, 2018
Erik Zsemlye
56th Street sucks! 20.8mi
Jun 9, 2018
Clif Williams
Mar 3, 2018
Jesse Smith
I don’t like the stretch on the road. Other than that, good place to pile on miles. 21mi
Dec 3, 2017
MealyM Mealy
About 1/2 crushed gravel, 1/2 cement. W and N is nice but E and S edges aren't worth it - no bike path. 27.3mi — 2h 21m
Aug 30, 2017
Matt Chan
This is NOT a mountain bike trail. It's barely a trail. Half of it is on concrete sidewalk. It should be removed from the database. 23.1mi
Jul 23, 2017
Dave Cooper
Only thing to add is. turning South on Buckley Rd, it literally disappears like a fart in the wind, and you end up going Easy towards Tower, turn r...

Trail Ratings

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