TrailAspen Ridge – Boulder Ridge
Boulder scramble through aspens to Phelps Lake. 6.2mi, 1,140ft gain. Moderate grit required.

Loop around String Lake for 360-degree views of Mount St. John, Rockchuck Peak, and Jackson Hole Valleyβa 3.7-mile circuit with 540 feet of elevation gain. The east shore delivers a gradual warm-up over rooty terrain; the west side climbs to a ridge overlooking the lake before ducking back into forest. Mostly shaded, except where a burned forest opens the canopy and exposes you to sun and wind. Difficulty: Easy with real terrain; time: 2β3 hours depending on fitness and photo stops.
Easy with real terrain
Panoramic views of Mount St. John, Rockchuck Peak, and Jackson Hole Valley from the ridge overlooking String Lake. The burned forest adds moody, raw terrain.
β’ The false 'summit' on the west ridge is not the high pointβkeep going for the best views. β’ East side is faster; save the west side ridge for the return to enjoy the views. β’ Arrive by 6 AM to secure parking in summer. β’ The burned forest is disorientingβstay on the main trail.
Late Spring through Early Fall (MayβOctober)
Good for families with older kids (8+) comfortable with rooty terrain and 540 ft of elevation. Young kids should be supervised on the west ridge section due to exposure and drop-offs. The burned area is exposed and hotβbring shade gear.
Hikers praise the lake views and moderate difficulty, though the rooty terrain and climb to the ridge challenges those unprepared for real ground. The burned forest section and ridge exposure make it feel more serious than its 'easy' rating suggests. Most report it as a solid half-day hike with excellent payoff.
None required.
None. You drive to the String and Leigh Lakes Trailhead.
Exposed roots and rocks on east shore can twist ankles. West side ridge has drop-offs with exposure to wind and steep sides. Burned forest section is full sun and can be hot. Trail can be icy in spring.
The String Lake Loop is an easy 3.7 mi loop hike with 540 ft of elevation gain and an average slope of 6%. The trail on the east side is relatively flat with obstacles such as exposed roots and rock. The west side includes elevation gain to a ridge overlooking String Lake.
Good for families with older kids (8+) comfortable with rooty terrain and 540 ft of elevation. Young kids should be supervised on the west ridge section due to exposure and drop-offs. The burned area is exposed and hotβbring shade gear.
String and Leigh Lakes Trailhead has parking. Colter Bay Campground (8 miles north) has RV and tent sites, restrooms, and ranger station. No services directly at trailhead.
Hikers praise the lake views and moderate difficulty, though the rooty terrain and climb to the ridge challenges those unprepared for real ground. The burned forest section and ridge exposure make it feel more serious than its 'easy' rating suggests. Most report it as a solid half-day hike with excellent payoff.
" Hikers praise the lake views and moderate difficulty, though the rooty terrain and climb to the ridge challenges those unprepared for real ground. The burned forest section and ridge exposure make it feel more serious than its 'easy' rating suggests. Most report it as a solid half-day hike with excellent payoff."
It's easy by Teton standardsβno scrambling, no cables, no chains. But 540 ft of elevation gain over rooty terrain is real work. Most hikers finish in 2β3 hours. Don't let the 'easy' label fool you.
Yes, black bears are possible. Make noise in the open areas, especially near the lake and in the burned forest. Travel in groups. No bears are guaranteed, but be loud.
The route is obviousβthe loop is well-worn. But bring a map anyway. If you get turned around in the burned area, it helps.
Moderate fitness. You need to handle sustained climbing and uneven ground for 2β3 hours. Not a beginner trail. Regular hikers handle it fine.
No. Dogs are not permitted on this trail or in Grand Teton backcountry.
No water sources on the trail. Filter at String Lake at the start or carry all 2 liters from the car. Plan to carry water for the entire 3.7-mile loop.
Yes, by 8 AM in summer. Arrive by 6 AM or plan an afternoon start after 1 PM.
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