Green Mountain

Lakewood, CO
Length: Varies
Type: Loop

About This Trail

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William F. Hayden Park on Green Mountain offers a challenging system of multiple-use trails for all abilities.  The trails tend to dry earlier than many of the foothills parks, making the park a fantastic winter destination.

The park trails include:

  • Green Mountain Trail: 6.5 mile loop.  Features a challenging ascent to the park’s highest point
  • Hayden Trail: 1.6 miles. Accessed from the Utah Trailhead, this trail switchbacks up the south side of the mountain.
  • Summit Loop Trail: 2.75 miles. A very scenic trail around a portion of the park’s summit.
  • Rooney Valley Trail: 3 miles. A challenging single track trail that offers a sense of solitude and remoteness.
  • Box-o-Rox Trail: 1.7 miles. Another challenging single track trail considered a favorite of local mountain bikers.
  • North Access Trail: 2 miles.  This trail is accessed from Indiana Avenue and will be formalized in the near future.
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Trail Features

Surface type Dirt
Stroller friendly No
ADA accessible No
Water fountains No
Bathrooms No
Cell reception Spotty
Pet friendly Yes
Nearby convenience store Yes
Camping Nearby No
Emergency support
within 5 miles

Trail highlights

Natural Play Area and Viewpoint

There is a great flat spot at the top of the first climb right next to the radio tower that is a perfect place to stop for a snack, diaper change, rest, playtime, etc.

The one drawback to this trail system is it is a favorite for mountain bikers and they are prevalent on all of the trails.

Fee & Parking Details

Fee : $0.00

There is a decent sized parking lot at the trailhead with port-o-pottys. It can fill up on the weekends.

Trail Contributor

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Trail Map

Getting There

Take hwy 470 to Alameda Pkwy, turn right on Alameda, turn left to stay on Alameda and then the parking lot will be on your left. You will pass an overflow parking lot but keep going to the second, main, lot.