Rocky Mountain Arsenal National Wildlife Refuge Perimeter Trail
Rocky Mountain Arsenal National Wildlife Refuge Perimeter Trail
2.5
(20)
33
runners
03:56
33.4km
100m
Running
Jog the 20.8-mile Rocky Mountain Arsenal National Wildlife Refuge Perimeter Trail, a challenging route with wildlife and Front Range views.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Prairie Gateway Open Space
Waypoints
Start point
Parking
Get Directions
2.65 km
Highlight (Segment) • Trail
Tip by
25.2 km
Highlight (Segment) • Trail
Tip by
28.6 km
Highlight • Lake
Tip by
33.4 km
End point
Parking
Way Types & Surfaces
Way Types
27.3 km
3.92 km
2.10 km
109 m
Surfaces
18.8 km
8.04 km
4.51 km
1.76 km
288 m
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Elevation
Highest point (1,630 m)
Lowest point (1,560 m)
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Weather
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Today
Wednesday 27 May
22°C
12°C
93 %
Additional weather tips
Max wind speed: 18.0 km/h
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This route was planned by komoot.
Yes, the Perimeter Trail is generally considered easy and suitable for all skill levels, including beginners. While the full loop is quite long at 20.6 miles (33.4 km), the terrain is nearly flat with gentle slopes and minimal elevation changes, making it physically manageable. You can choose to complete shorter sections if the full distance is too challenging.
The trail offers a varied surface, primarily featuring paved sections for smooth running. You'll also encounter stretches of gravel and a wide dirt shoulder. It's described as a doubletrack trail that is largely even, providing a consistent and manageable surface for jogging.
The refuge is renowned for its abundant wildlife. Along the Perimeter Trail, you have excellent opportunities to spot bison, elk, antelope, deer, prairie dogs, coyotes, various raptors, and bald eagles. It's a fantastic place for wildlife viewing.
Free parking is available at several access points around the refuge. These convenient parking areas allow visitors to easily start their journey on the Perimeter Trail.
No, there are no entrance fees or permits required to access the Rocky Mountain Arsenal National Wildlife Refuge or to use the Perimeter Trail. It's free and open to the public. You can find more information on the official fws.gov website.
Yes, the Perimeter Trail is one of the few trails within the Rocky Mountain Arsenal National Wildlife Refuge where dogs are permitted. Please ensure your dog is kept on a leash at all times to protect the wildlife and other visitors.
The trail can be enjoyed year-round, but spring and fall offer pleasant temperatures for jogging and excellent wildlife viewing opportunities. Summer mornings are also great to beat the heat, while winter can provide a unique, serene experience, though you should dress appropriately for cold weather.
The Rocky Mountain Arsenal National Wildlife Refuge Perimeter Trail is a loop trail, almost completely circling the 15,000-acre refuge. This allows for a continuous journey without needing to retrace your steps.
The entire 20.6-mile (33.4 km) loop typically takes around 3 hours and 56 minutes to complete by jogging, depending on your pace and how often you stop for wildlife viewing or breaks.
Beyond the abundant wildlife, the trail offers diverse natural landscapes including grasslands, wetlands, and woodlands. On clear days, you'll enjoy magnificent views of the Front Range mountains. A specific highlight along the route is the Rod and Gun Club Pond, offering a scenic spot.
Yes, the Perimeter Trail is well-connected and intersects with various other trails within the refuge. You'll find it connects to sections of the Denver Orbital Trail, Rocky Mountain Greenway Trail, and First Creek Trail, allowing for customized routes and longer excursions.