Overview
Molas Lake Loop is the accessible alternative in a forest full of demanding trails. At 4 miles with just 300 feet of gain, it delivers a genuine alpine experience, high-altitude lake, expansive mountain panoramas, wildflower-dotted meadows, without requiring the fitness level or preparation of routes like Ice Lake or Chicago Basin. The trail circles Molas Lake at roughly 10,500 feet, with views of some of the most recognizable peaks in the San Juans.
The surrounding landscape is the same dramatic volcanic terrain that characterizes this part of the San Juans, but at an elevation and grade that allows a wider range of hikers to experience it. Popular with families, photographers, and visitors who want a taste of alpine Colorado without committing to a strenuous climb, Molas Lake Loop is a genuine highlight reel of the San Juan National Forest scenery.
The Needles, the Grenadier Range, and the Animas River valley below US-550 are all visible from portions of the loop. The Durango & Silverton Narrow Gauge Railroad, the same train that carries hikers to Chicago Basin, passes through the canyon below at various times of day, visible and audible from certain points on the loop.
The Route
Miles 0 to 1.0: Trailhead to Lake North Shore
From the Molas Lake Park day-use area, the trail begins along the north shore of the lake on a well-worn path. The views open immediately, with the Needles rising to the north and the highway corridor dropping into the Animas canyon to the east. The trail is mostly flat here, passing through low willows and open tundra grasses.
Miles 1.0 to 2.5: West Side and Meadow Section
The trail rounds the west end of the lake and enters an open meadow area. This section has the best wildflower display from late July through early August. Small streams cross the meadow; stepping stones are generally in place but may be muddy after rain. The terrain rises slightly here before leveling off.
Miles 2.5 to 4.0: South Shore Return
The return leg follows the south shore of the lake back toward the trailhead. Views shift to include Andrews Lake to the south and the broad plateau terrain around Molas Pass. The trail reconnects with the parking area near the campground entrance.
When to Visit
Molas Lake is accessible earlier in the season than higher routes, with the trail typically passable by early June in normal snow years. October is often excellent, with stable weather and fall color in the lower drainages visible from the trail. Winter access is possible on snowshoes or skis, though the campground closes seasonally.
Even at 10,500 feet, afternoon thunderstorms are a consideration in July and August. The loop takes 1.5 to 2.5 hours for most hikers, making a morning start a reliable way to avoid afternoon weather.
What to Bring
Many hikers carry:
- 1 to 2 liters of water (water is available at the campground)
- A light jacket for the exposed ridgeline sections
- Sun protection
Consider bringing:
- Binoculars for viewing the peaks and watching for the D&SNG train in the canyon below
- A camera for the view from the north shore early in the morning
Practical Details
The Molas Lake Park campground has vault toilets accessible to day hikers. A small day-use parking fee may be charged (as of 2026); verify current rates at the campground entrance. Cell service is limited but may be available on the higher portions of the loop depending on carrier.
Review Leave No Trace principles for trail etiquette on popular routes. Stay on the marked trail to protect the fragile tundra vegetation.
Getting There
From Silverton, take US-550 south for approximately 6 miles to the Molas Lake Park entrance on the right (west) side of the highway. The turnoff is well-signed. From Durango, take US-550 north approximately 44 miles. The entrance is a paved road leading west into the campground and day-use area.