Grand Teton National Park

Aspen Ridge - Boulder Ridge

moderate Fall ColorLake LoversModerate Hikers
0 mi Distance
3-5 hours Estimated Time
Out & Back Trail Type

What to Expect

Starting from the Laurance S. Rockefeller Preserve — one of the most thoughtfully designed trailheads in the entire park system — this loop eases you through dense aspen groves before the terrain shifts to granite boulder fields that demand a bit more attention underfoot. The trail winds steadily but never brutally, delivering you to the shores of Phelps Lake where the trees pull back like curtains to reveal a jaw-dropping view straight into the mouth of Death Canyon. The water is impossibly clear and the canyon walls rise with the kind of drama that makes you stop mid-sentence. The return via Boulder Ridge offers a completely different perspective, keeping the loop from feeling repetitive. This is the perfect trail for hikers who want more than a casual stroll but aren't looking to destroy their knees — a Goldilocks loop that rewards effort with one of the Tetons' most underrated lake views.
Fall ColorLake LoversModerate HikersPhotographersLoop Trail Fans

Safety Advisory

The boulder field section has uneven footing with gaps between rocks — ankle-rolling territory if you're moving too fast or wearing soft trail runners. Take your time and watch your step, especially on the descent.

This is active bear country, particularly in late summer when berries ripen along the trail. Carry bear spray accessible on your hip, not buried in your pack, and make noise through the dense aspen sections where sight lines are limited.

Trail Details

Difficulty moderate
Estimated Time 3-5 hours
Trail Type Out & Back
Pets Not allowed
Season Year-round
Trailhead Aspen Ridge - Boulder Ridge

Pro Tips

Trail Tip

Hike the loop counterclockwise (Aspen Ridge first) — you'll gain elevation gradually through the shaded aspens instead of grinding up the more exposed Boulder Ridge in the heat, and the lake reveal hits harder from this direction.

Trail Tip

The LSR Preserve parking lot is small and fills by 9 AM in summer with no overflow option. Arrive before 8 or after 3 PM, or you'll be turned away at the gate — this is one of the few trailheads in the Tetons that actually closes when full.

Trail Tip

Late September is the sleeper pick here. The aspen groves on the first half of the loop turn electric gold, and the crowds thin dramatically after Labor Day. The reflection of golden aspens on Phelps Lake is one of the best photography opportunities in the park.

Photos

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