2.0 mi from the trailheadHeadwaters Campground at Flagg Ranch
Campground · Wyoming

21.0 mi out & back · 1,457 ft gain · 7,461 ft high point · Very hard
Via South Boundary Trail: South Entrance-Harebell and the Heart Lake Trail (10.4 mi)
In Yellowstone National Park · Wyoming · National Park Service
This 21.0-mile out and back reaches Basin Creek Lake in Yellowstone via South Boundary Trail and Heart Lake Trail.
1,457 ft of gain round trip.
The closest places to sleep, measured from the trailhead.
Ranked the same way, within twenty-five miles.
What the trail reaches, measured from the start.
The hike from its start, the approach dashed. Drag with two fingers, or hold a key to zoom.
Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.
Campground · Wyoming
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Today: Mostly Cloudy · wind 1 to 5 mph SSW