Rocky Mountain Arsenal National Wildlife Refuge Perimeter Trail
Rocky Mountain Arsenal National Wildlife Refuge Perimeter Trail
4.8
(6698)
16,776
riders
05:14
34.2km
90m
Road cycling
Cycle the 21.2-mile Rocky Mountain Arsenal Perimeter Trail for wildlife viewing, prairie views, and a challenging gravel ride.
Last updated: February 26, 2026
Tips
The surface along some of this route may not be suitable
Some segments of your route comprise a surface that may not be suitable for your chosen sport.
After 2.13 km for 3.67 km
After 5.97 km for 3.57 km
After 15.7 km for 17.5 km
Waypoints
Start point
Parking
Get Directions
2.46 km
Highlight (Segment) • Trail
Tip by
23.8 km
Highlight (Segment) • Trail
Tip by
34.2 km
End point
Parking
Way Types & Surfaces
Way Types
25.5 km
4.85 km
2.19 km
1.35 km
223 m
< 100 m
< 100 m
Surfaces
25.5 km
7.44 km
1.17 km
108 m
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Elevation
Highest point (1,630 m)
Lowest point (1,560 m)
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Weather
Powered by Foreca
Sunday 31 May
27°C
12°C
15 %
Additional weather tips
Max wind speed: 10.0 km/h
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This route was planned by komoot.
The trail is mostly gravel and dirt, with some sections that can be sandy or muddy, especially after rain. It's largely a flat doubletrack with a mellow grade, making it non-technical and suitable for gravel bikes or road bikes with wider tires.
Yes, the trail is generally considered easy with minimal elevation changes, making it suitable for all skill levels, including beginner road cyclists and families. It's a great option for a less strenuous outing.
The refuge is home to abundant wildlife. You have a good chance of spotting bison, mule and white-tailed deer, coyotes, various raptors, bald eagles, and many species of songbirds and waterfowl. The northern and eastern sides of the trail are particularly known for wildlife viewing.
Parking is available at the visitor's center, which is conveniently located near the starting trailhead. There are also restrooms at the visitor's center for your convenience.
No, visiting the Rocky Mountain Arsenal National Wildlife Refuge and using its trails, including the Perimeter Trail, is completely free of charge. You do not need any special permits.
Yes, Class 1, 2, and 3 e-Bikes are permitted on the Perimeter Trail and other designated Refuge roads. However, bikes are not allowed in the bison enclosure areas or on the one-way Wildlife Drive.
As a National Wildlife Refuge, pets are generally not allowed on the trails to protect the wildlife. It's best to leave your furry friends at home when visiting.
The trail can be enjoyed year-round, but spring and fall offer pleasant temperatures and excellent wildlife viewing opportunities. Summers can be hot and exposed, while winters may bring snow and ice, potentially affecting trail conditions.
There is no water available directly along the trail, so be sure to bring enough with you. However, there is a bike repair station and an air pump located at the intersection of 64th Avenue and Havana Street.
Yes, the Perimeter Trail is the longest trail in the refuge and forms a loop. It also incorporates sections of other trails such as the Greenway Trail and the Perimeter Trail (Gravel). You might also encounter parts of the Denver Orbital Trail and the Rocky Mountain Greenway Trail.
Yes, it's a good idea to check for current conditions before you go. Due to ongoing construction projects, such as the 96th Avenue widening, temporary detours like the Buckley Trail may be in effect, which could alter your route slightly.