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Yellowstone National Park: Heart Lake

Experience world class fly-fishing, wildlife sightings, and to-die-for campsites on this 16.2-mile out-and-back to the second largest backcountry lake in Yellowstone National Park.

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There’s good reason why Heart Lake is one of Yellowstone National Park’s most popular backcountry destinations: it’s got it all. Nature lovers can observe the wide variety of wildlife that live around the lake—elk, trumpeter swans, grizzly bears, and gray wolves (look for paw prints in the dusty trail). Avid anglers can fine-tune their casting technique while fishing for cutthroat trout, and backpackers can sleep under starry skies in campsites that dot the remote shoreline.

The 16.2-mile out-and-back starts at the Heart Lake Trailhead and winds to the east for a gradual 4-mile climb to the route’s highpoint. At 8,140 feet, this point offers intermittent views of the lake and Factory Hill directly to the south. Half a mile later the trail’s major descent begins, losing 500 feet in 1 mile as it enters Heart Lake Geyser Basin, an isolated basin peppered with fumaroles and hot springs. The route touches the gravelly banks of Heart Lake at mile 7.6 and veers west for the final half-mile traverse to a group of backcountry campsites (reservations required). Set up camp and stay for a day or two, or turn around and follow the same route back to the trailhead.

Note: The large bear management area surrounding Heart Lake is closed to hikers from April 1 through June 30.

PERMIT Overnight camping in Yellowstone National Park requires a backcountry permit. Check out the latest fees and more details at

MORE PARK INFO Yellowstone National Park, (307) 344-7381;

-Mapped by Jason Kauffman

Heart Lake

Trail Facts

  • Distance: 26.1



Location: 44.3173466, -110.5983353

Hike east on the well-maintained trail to Heart Lake.


Location: 44.3217296, -110.5816948

A mile into the hike, the trail enters partially burned forests.


Location: 44.3194959, -110.5731976

Pass a meadow on the left and continue heading southeast.


Location: 44.3166711, -110.5696893

Ford an unnamed creek. This gravely channel is often dry by late summer or early fall.


Location: 44.3147473, -110.5363348

Crest the trail’s highpoint. Ahead: Views open up to Heart Lake as you drop into the Heart Lake Geyser Basin.


Location: 44.311267, -110.533832

Begin the descent toward Heart Lake, which is visible for most of the remaining 3.7-mile stretch to the lake.


Location: 44.3104682, -110.5328325

Pass the first of many thermal features on the trail to Heart Lake.


Location: 44.3082132, -110.526264

Rest your legs for a minute or two at this vantage point with clear views to Heart Lake and Factory Hill, the mountain immediately to the south.


Location: 44.30352, -110.5197573

Cross bridge over Witch Creek (the first bridge along the trail).


Location: 44.3022992, -110.5201006

Skirt the bright blue thermal pools that dot the meadow on the left-hand side of the trail.


Location: 44.2861496, -110.497849

Pass the Heart Lake Patrol Cabin, which is used by park rangers during the summer months.


Location: 44.28542, -110.4977471

The trail empties onto the gravely shores of 2,000-acre Heart Lake, the second largest backcountry lake in the park. Watch for all manner of bird life along the lake shores, most notably the rare trumpeter swan, the largest species of waterfowl in North America.


Location: 44.284793, -110.5014361

Cross the bridge over the mouth of Witch Creek.


Location: 44.2807539, -110.5024034

Campsite 8H6: The first of 5 back-to-back backcountry camping spots (designated by the park) along the west shores of Heart Lake. Reservations are required to camp at these campsites (reserve a spot well ahead of time; reservations are booked on a first come, first served basis). Optional: To summit Mount Sheridan (a 2,500-foot climb), continue 500 feet to the Mount Sheridan Trail turnoff. Follow the same route back to the trailhead.

Heart Lake and Mount Sheridan

Location: 44.2852932, -110.498836

Towering over the west shores of Heart Lake is 10,305-foot Mount Sheridan. A 6-mile out-and-back hike takes Heart Lake campers to the summit of this steep-sided mountain.

Heart Lake Trail

Location: 44.3182447, -110.595299

On the trail to Heart Lake.

Mule Deer Fawn

Location: 44.3215147, -110.5879176

A mule deer fawn browses near the trail.

Autumn Colors

Location: 44.3210081, -110.5790234

Brilliant fall colors liven the trailside.

Autumn Grasses

Location: 44.3158651, -110.5651188

Warm days and fewer hikers make fall a fantastic time to visit Yellowstone.

Trailside Meadow

Location: 44.3202252, -110.5469227

The trail to Heart Lake passes through a mixture of forest and small meadows.

Halfway to Heart Lake

Location: 44.3164792, -110.5385971

The mountain in the distance just on the other side of the high point along the Heart Lake Trail is called Factory Hill.

First View of Heart Lake

Location: 44.3142069, -110.536108

After several moderate uphill miles, Heart Lake finally comes into view.

Heart Lake Geyser Basin

Location: 44.3022838, -110.5199933

For safety, stay well back from Yellowstone’s scalding hot springs.

Boiling Pots

Location: 44.3010783, -110.520004

Numerous steaming vents, geysers and boiling pots dot the Heart Lake Geyser Basin.


Location: 44.2880697, -110.4993188

A pair of ravens surveys the Heart Lake Geyser Basin.

Heart Lake Ranger Station

Location: 44.2859038, -110.497849

Park rangers use the Heart Lake Ranger Station during the summer months.

Shores of Heart Lake

Location: 44.28542, -110.4976934

Trail junction on the shores of Heart Lake.

Gravel Beaches

Location: 44.2854238, -110.4975647

The small peat gravel along the shores of Heart Lake makes for excellent barefoot hiking.

Trumpeter Swan

Location: 44.2851243, -110.4998553

A trumpeter swan flexes its wings along Heart Lake. Yellowstone National Park is a stronghold for the rare swan, the largest species of waterfowl in North America.

Heart Lake

Location: 44.2817255, -110.5024195

Trees overhang Heart Lake next to campsite 8H6, one of 10 campsites that dot the lakeshore.

Common Mergansers

Location: 44.2808806, -110.502221

A single-file band of common mergansers swims by designated campsite 8H6 on the shores of Heart Lake.

Heart Lake Campsite

Location: 44.2807539, -110.5023551

The view from campsite 8H6.

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