4.7
(58)
564
riders
20
rides
Gravel biking in Rocky Flats National Wildlife Refuge offers routes through expansive landscapes characterized by rolling prairie grasslands, woodlands, and wetlands. The terrain provides striking vistas of the Front Range of the Rocky Mountains. Trails consist of dirt and packed gravel, offering rolling terrain and hills suitable for various skill levels. The refuge encompasses a globally rare xeric tallgrass prairie ecosystem.
Last updated: May 14, 2026
19
riders
24.9km
01:49
290m
290m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
riders
17.1km
01:06
200m
200m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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6
riders
22.0km
01:40
220m
220m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
35.1km
02:35
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
16
riders
24.6km
01:30
250m
250m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Rocky Flats National Wildlife Refuge
The bridge over Indiana St connecting Westminster Hills Open Space to Rocky Flats is now open.
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This is a nice packed dirt and gravel connector trail, with views of the range from South Bolder Peak to Green Mountain and the Flatirons. Best to avoid this track if there has been recent rain or snow.
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Mayhoffer Trail stretches 2.7 miles over gravel and dirt and connects users to other regional trails with awesome views of the surrounding plains and foothills.
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If you're a bird enthusiast, the Bald Eagle Viewing Hide is a must-see. It's in a quiet spot with an elevated view, so spotting eagles is way easier. The best times to go are early mornings or late afternoons when the eagles are more active. Donβt forget your binoculars and camera!
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View looking East on the Greenway Trail. The bench might come in handy too, nice view of the Flatirons.
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The Rocky Flats National Wildlife Refuge offers a diverse network of trails, with 19 routes specifically curated for traffic-free gravel biking. These range from easy to difficult, ensuring options for various skill levels.
The trails in Rocky Flats National Wildlife Refuge offer a mix of difficulties. While there are 2 easy routes perfect for beginners, the majority (16 routes) are considered moderate, featuring rolling terrain and some elevation changes. There is also 1 more challenging route for experienced riders. You can find detailed difficulty ratings on each komoot tour page.
Yes, the refuge has several family-friendly options, particularly those with minimal elevation gain and shorter distances. The trails are generally well-maintained dirt and packed gravel, suitable for various ages. For a moderate, yet accessible ride, consider the Standley Lake β View of Stanley Lake loop, which is just under 15 km.
While gravel biking, you'll experience striking vistas of the Front Range of the Rocky Mountains, rolling prairie grasslands, woodlands, and wetlands. The refuge is home to a diverse array of wildlife, including prairie falcons, mule and white-tailed deer, elk, coyotes, and various songbirds. Keep an eye out for the rare xeric tallgrass prairie ecosystem.
For specific rules regarding dogs on trails, it's always best to check the official refuge guidelines. Generally, national wildlife refuges have strict regulations to protect wildlife. You can find detailed visitor information on the official FWS website.
Along the trails, you can discover several points of interest. The historic Lindsay Ranch barn is a notable landmark, often found along the Lindsay Ranch Loop Trail. There's also a Bald Eagle Viewing Hide, offering an elevated perspective for spotting eagles, especially during early mornings or late afternoons.
The refuge's trails are open year-round, but spring through fall offers the most vibrant experience with a diverse array of wildflowers in bloom. During these seasons, the weather is generally more favorable for biking. Winter can also be an option, but conditions may vary with snow and ice, so checking local conditions is advisable.
Ride durations vary significantly based on the route and your pace. Shorter, easier rides can take around 1.5 to 2 hours, while more challenging routes with significant elevation changes might require 3 to 5 hours. For example, the Community Ditch Trail β Meadowlark Trail loop is approximately 25 km and takes around 1 hour 50 minutes.
The komoot community highly rates the gravel biking experience in Rocky Flats National Wildlife Refuge, with an average score of 4.86 out of 5 stars from 50 ratings. Reviewers often praise the quiet, traffic-free nature of the trails, the stunning Front Range views, and the opportunity to observe diverse wildlife in a natural setting.
Yes, as a National Wildlife Refuge, there are specific rules to protect the natural environment and wildlife. These include staying on marked trails, respecting wildlife, and adhering to any posted regulations regarding e-bikes (Class 1 e-bikes are generally permitted). For a comprehensive list of activities and regulations, please visit the official FWS biking page.
While direct public transport options to the refuge entrance might be limited, you can research RTD bus routes that serve nearby communities like Arvada, Westminster, Broomfield, Superior, or Golden. From these points, you may need to arrange for a short taxi or ride-share to the trailheads. Planning your route in advance using the RTD website is recommended.


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