Donner Pass and Lookout Mountain

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Roosevelt National Forest

Donner Pass and Lookout Mountain is a 10.2 mile lightly trafficked out and back trail located near Estes Park, Colorado that features beautiful wild flowers and is rated as difficult. The trail offers a number of activity options and is best used from May until October. Dogs are also able to use this trail but must be kept on leash.

Distance: 10.2 miles Elevation Gain: 3,257 feet Route Type: Out & Back

dogs on leash



bird watching




wild flowers


8 months ago

You can't park at the Miller Creek/Fork Trailhead unless you have a resident pass. And even then there are only two parking spots along the road. It is best to go further down Dunraven-Glade road and park at Dunraven Trailhead. Then you can hike the Bulwark Ridge & Indian trails to get to Miller Fork trail. Beautiful area to hike. Lightly used trail. I hiked it on a Friday, and never saw another soul. I must have missed a path or something at the top of Lookout Mountain. It was covered in trees which obscured the 360 views (noted in another review)...

10 months ago

Well worth the effort to summit Lookout Mountain! Beautiful 360-degree views of both Thompson and Poudre canyons and very little traffic. There is a meadow about 2 miles into the trail from the Miller Fork trailhead that has been a bit difficult to find your way out of. We marked the trail out with a cairn and green survey tape. When you approach the “saddle” up the Lookout Trail at Donner Pass, the trail from there disappears and you have to bushwhack to the top from there about 500 feet. A few cairns are placed there to mark the way, but mainly it’s pick your own way.

Mon Jul 02 2018

you can't actually Park at this destination Point. Don't follow the directions. you have to park at the North Fork trailhead. that then takes you to the Miller Fork Trail. lots of elevation gain. Beautiful views. No one else on the trail.

Tue Jul 04 2017

First 1 mile kinda boring-the rest gorgeous. The part along creek was gorgeous with rocks and flowers. Up hill after that to lookout -so many aspens. Only saw the dirt bikes-and two hikers.

Mon Oct 24 2016

The trail to Lookout is ok. the first mile is through Aspen forest and is fairly beautiful. After that the trail is moderately rigorous with not too much of a view even at the top of the Mountain, due to surrounding trees. Its not a bad, trail, but the lack of views on the way up is a bit disappointing. Also a couple of dirtbikes legally using the trail, which I dont love in the woods.

Wed Sep 30 2015

Two different ways to get there, via Poudre Canyon or through Pennock Pass. Very pretty area especially in the fall and plenty of beautiful scenery on this hike that runs in and out of the the stream. Not too strenuous just plan for mountain weather, take snacks, and water. :)

Tue Sep 09 2014

A good, long hike with awesome views of surrounding area from the summit. The trail is hard to follow at some points.

Sat Mar 10 2018

Mon Mar 19 2012