4.7
(15)
403
riders
20
rides
Gravel biking around Four Square Mile offers a network of routes characterized by varied terrain suitable for mixed-surface cycling. The area features a combination of paved roads and unpaved paths, providing diverse riding experiences. Riders can expect routes that traverse suburban landscapes and open spaces, with generally low elevation changes. This region provides accessible gravel biking opportunities for different skill levels.
Last updated: May 18, 2026
5.0
(1)
78
riders
43.3km
02:19
140m
140m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
58
riders
53.9km
02:59
190m
190m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(1)
44
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
21
riders
19.7km
01:05
80m
80m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
23
riders
45.8km
02:24
160m
160m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Donโt miss the chance to see a SpaceX rocket booster up close. Itโs mounted just above the Mary Carter Greenway in Littleton, inside a fenced lot by DISH Network. You canโt go inside, but the view from the bike path is more than enough for a quick, geeky photo stop. The site is open daily from 9 AM to 5 PM.
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This is a strategic point along the High Line Canal Trail with a view over Sumac Hill Farm. You can see the Big Dry Creek basin, the surrounding vegetation, and some of the birdlife that lives here.
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Explore the beauty of the Marjorie Perry Nature Preserve, with soft-surface trails winding through diverse habitats like grasslands, wetlands, and wooded areas. The preserve has views of the Rocky Mountains and opportunities for birdwatching and other wildlife viewing. To protect the ecosystem, visitors must stay on designated trails.
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This is the closest most people will ever get to a rocket booster. It is located right next to the bike path. It is in a fenced area with locked gate. I don't know what the opening hours are. Maybe someone else can post those hours to this highlight when they visit it. https://en.m.wikipedia.org/wiki/List_of_Falcon_9_first-stage_boosters#Booster_1021
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This 59-acre preserve located along the High Line Canal is a great place for bird and wildlife watching and a scenic setting to run in.
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There are small wooden posts, like this one, along the High Line Canal Trail so you can track your milage. This spot mark the one mile point from the Goodson Center, the main access point and trailhead for the High Line Trail.
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The Goodson Center is a large recreation center with a large park behind it that serves as the main access point and trailhead for the High Line Canal Trail. There is ample parking and restrooms.
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The High Line Canal Trail is a scenic and accessible hard-packed gravel path for walking, jogging, and biking. This section of the 71-mile trail (around mile 30) runs by Greenwood Village, part of the Denver metro area, and features tree-lined stretches through neighborhoods and parks, and views of the Rocky Mountains and the High Line Canal. The well-maintained trail is popular year-round for recreation.
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Gravel biking in Four Square Mile offers a range of difficulties, with the majority of routes being moderate. Out of 24 available routes, 14 are classified as moderate, 5 as easy, and 5 as difficult. This variety ensures options for different skill levels, from relaxed rides to more challenging excursions.
Yes, Four Square Mile offers several easy gravel routes perfect for beginners or those seeking a relaxed ride. One popular option is the Blackmer Lake โ Blackmer Lake Trail loop from Colorado, an easy 20.2-mile path featuring a relatively flat profile. There are 5 easy routes in total to explore.
For those looking for longer rides, Four Square Mile has several options. The longest route is the View from Chatfield Dam โ Mary Carter Greenway Trail loop from Louisiana & Pearl, covering approximately 44.4 miles (71.5 km). Another substantial ride is the Sumac Hill Farm viewpoint โ Mineral Avenue Trail loop from Orchard, which is about 40.4 miles (65 km) long.
Yes, many of the gravel bike routes in Four Square Mile are designed as loops, offering convenient circular journeys. Examples include the popular Blackmer Lake loop from University of Denver and the Gravel loop from Cherry Hills Village. These loops allow you to start and finish at the same point, making logistics easier.
The gravel bike trails in Four Square Mile are characterized by mixed-surface paths. You can expect a combination of paved roads and unpaved paths, traversing suburban landscapes and open spaces. The routes generally feature low elevation changes, making them accessible for various ability levels.
The gravel biking routes in Four Square Mile are highly rated by the komoot community, with an average score of 4.8 stars from over 10 reviews. More than 250 gravel bikers have used komoot to explore the area, often praising the varied terrain, accessible routes, and the mix of urban and natural environments.
While the routes in Four Square Mile traverse suburban areas and open spaces, you can find natural attractions nearby. The Marjorie Perry Nature Preserve and Bluff Lake Park offer pleasant natural settings. Additionally, the Mid section of Platte River Trail is a notable cycling path that provides scenic stretches.
Beyond the trails, you can explore several landmarks in the vicinity. The Colorado State Capitol and the Convention Center are significant man-made monuments that might be of interest. For a historical perspective, Four Mile Historic Park in Denver offers insights into pioneer life, though it is a separate attraction not directly on the gravel biking routes.
Given the region's characteristics, gravel biking in Four Square Mile is generally enjoyable for much of the year. The routes feature low elevation changes and a mix of paved and unpaved surfaces, making them less susceptible to extreme weather conditions that might affect mountainous terrain. Spring and fall offer pleasant temperatures, while summer can be warm but still rideable. Winter riding is possible, especially on paved sections, but unpaved paths might be affected by snow or ice.
Yes, several routes incorporate or pass near lakes and water features. The Blackmer Lake loop from University of Denver and the Blackmer Lake โ Blackmer Lake Trail loop from Colorado both feature Blackmer Lake. Additionally, the Marjorie Perry Nature Preserve and Bluff Lake Park are nearby lakes that can be incorporated into or viewed from some rides.
The duration of a gravel bike ride in Four Square Mile varies depending on the route and your pace. For example, the Blackmer Lake loop from University of Denver typically takes around 2 hours and 19 minutes, while the Gravel loop from Cherry Hills Village is often completed in about 1 hour and 58 minutes. Longer routes, like the View from Chatfield Dam โ Mary Carter Greenway Trail loop from Louisiana & Pearl, can take over 4 hours.


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