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Difficulty
This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
Moderate
Elevation
This reflects the total elevation gained throughout this route as measured by the GPS file. This includes all ascents and descents, and is higher than what is quoted in most route guides, which simply measure the distance between the starting-point and high-point of the route.
442 m
Distance
This reflects the return distance of this route as measured by the GPS file.
6.6 km
Duration
This reflects the estimated time the majority of users will take on this trail. If you are slower, add time to the top-end figure. If you are fast, then you may complete this route faster than this time range.
2.5-3.5h
Directions to Trailhead

Mill Lake Trail Route Guide

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The Mill Lake Trail is an unassumingly beautiful adventure that will take you high into the alpine terrain. This stunning trail exhibits the beauty of lush pine forests and meadowlands abundant with vibrant wildflowers, all before culminating at an emerald-hued alpine lake that is bounded by the towering cliffs of Fossil Mountain.

Route Description for Mill Lake Trail

Immerse yourself in the breathtaking scenery of Colorado’s high country along the Mill Lake Trail. This amazing adventure has remained a hidden gem amongst the hiking community, but we fear it won’t remain unknown for much longer. Short, sweet, and steep, this trek has the perfect ratio of strenuity and scenery. Get your heart rate up and let the epic alpine views motivate you to persist up to the glittering alpine lake.

Begin your trek along the Mill Lake Hike from the Fossil Ridge Trailhead. From here, the Fossil Ridge Trail will guide adventurers northwest along the curves of Lamphier Creek. Soon you will encounter an intersection and veer right to be diverted onto the Mill Lake Trail. Enjoy the views of towering pines that line the rocky path and revel in the sights of the looming summits peeking through the breaks in the tree cover. After navigating a set of vertiginous switchbacks, you will be guided above the treeline through a vibrant alpine tundra. Eventually, you will confront the lake which will undoubtedly leave you at a loss for words.

Admire the postcard-worthy view of the shimmering lake bounded by the impressive cliffs of Fossil Mountain. Dip your tired feet in the chilly waters and appreciate the panorama beginning your return. When you are ready, backtrack along the path to the trailhead.

Getting to the Mill Lake Trail Trailhead

The Mill Lake Trail departs from the Fossil Ridge Trailhead off Gold Creek Road.

Route Information for Mill Lake Trail

  • Backcountry Campground:

    Dispersed Backcountry Camping

  • When to do:

    April-October

  • Pets allowed:

    Yes - On Leash

  • Family friendly:

    Yes

  • Route Signage:

    Average

  • Crowd Levels:

    Low

  • Route Type:

    Out and back

Mill Lake Trail Elevation Graph

Weather Forecast

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