4.0 star · Difficult Out and Back

Lookout Mountain and Donner Pass Trail

Arapaho and Roosevelt National Forests · Larimer County, Colorado

Trail length

24.3 km

Time

~1 day 2 hrs

Elevation Gain

1466 m

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"An epic challenge to remember from the heart of Larimer County"

The Lookout Mountain and Donner Pass Trail is a 24.3 km looped trail that starts and ends in Glen Haven, Larimer County, Colorado. Based on our data, the trail is graded as Difficult. For information on how we grade trails, please read measuring the difficulty of a hiking trail on hiiker. Also, check our latest community posts for trail updates.

This trail can be completed in approx 2 days. Caution is advised on trail times as this depends on multiple variables. For more info read about how we calculate hike time.