4.8
(6411)
15,596
runners
01:47
14.6km
310m
Running
Tackle the challenging Green Mountain Loop, a 9.1-mile (14.6 km) jogging route that demands a good effort. You will gain 1020 feet (311 metres) in elevation, making this a difficult workout that typically takes around 1 hour and 47 minutes to complete. As you ascend, you will encounter diverse terrain…
Last updated: April 23, 2026
Tips
Your route passes through protected areas
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Waypoints
Start point
Parking
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8.77 km
Highlight • Viewpoint
Tip by
10.2 km
Highlight • Summit
Tip by
14.6 km
End point
Parking
Way Types & Surfaces
Way Types
7.97 km
3.73 km
2.56 km
211 m
144 m
Surfaces
7.56 km
3.15 km
2.23 km
1.01 km
554 m
120 m
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Elevation
Highest point (2,070 m)
Lowest point (1,810 m)
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Weather
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Today
Wednesday 6 May
3°C
-4°C
73 %
Additional weather tips
Max wind speed: 9.0 km/h
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This route was planned by komoot.
The Green Mountain Loop is located within William Frederick Hayden Park. You can find parking areas conveniently located around the park, offering direct access to the trail network. Given its popularity, arriving earlier in the day is advisable, especially on weekends.
No, there are generally no specific permits or entrance fees required to jog the Green Mountain Loop within William Frederick Hayden Park. The park is open to the public for recreational use.
William Frederick Hayden Park is a multi-use park. Regulations typically include keeping dogs on a leash, staying on marked trails, and packing out all trash. It's always a good idea to check the official Lakewood Parks and Recreation website for the most current rules and any specific advisories.
Yes, the Green Mountain Loop is generally dog-friendly. However, dogs are typically required to be on a leash at all times within William Frederick Hayden Park. Always ensure you clean up after your pet to help maintain the trail for everyone.
Spring and fall offer pleasant temperatures for jogging the Green Mountain Loop. In spring, you might see wildflowers. Summer can be very hot due to the lack of shade, making early mornings or late evenings preferable. Winter jogging is possible, but be prepared for potentially icy or snowy conditions, especially on higher sections.
The terrain on this loop is varied, featuring a mix of old jeep roads and singletrack. You'll encounter sections with more technical, rocky terrain, including challenging rock sections. Some parts may also have basic log steps for steeper ascents. The trail is generally unpaved.
The loop offers diverse and expansive scenery. From the 6,800-foot summit of Green Mountain, you'll get stunning views of the Denver metropolitan area to the east and high mountain peaks to the west. Notable points include Viewpoint John O. Hayden Trail and Green Mountain Peak. You might also spot red rock features and open slopes with wildflowers in season.
The Green Mountain Loop is rated as difficult for jogging. It includes a challenging ascent to the park's highest point, with significant elevation gain. While there are mellower sections, the overall route provides a substantial workout, suitable for experienced trail runners looking for a challenge.
A significant portion of the Green Mountain Loop, particularly in William Frederick Hayden Park, has a lack of tree cover. This means the trail is largely exposed to the sun and offers very little shade. It's crucial to plan accordingly with sun protection and hydration, especially during warmer months.
Yes, the Green Mountain Loop utilizes and intersects with several other trails within the park's network. Sections of the route follow the 470 Trail, Colorado Front Range Trail, Green Mountain Trail, John O. Hayden Trail, C-470 Trail, Summit Loop Trail, and Rooney Valley Trail, among others. This connectivity allows for customized routes.
Absolutely. The extensive network of connecting trails within William Frederick Hayden Park means you can easily customize your route. This allows you to adjust for length and difficulty, creating shorter, easier loops or longer, more challenging adventures depending on your preference and fitness level.