Heart Lake

Overview

Heart Lake is for folks who like their views hard‑earned and their wilderness quiet. You’ll hike about 7–7.2 miles one way through lodgepole forest, crest gentle terrain for wide views, then descend to a big, beautiful lake backed by Mount Sheridan. It feels wild, and it is.

Why it’s special

Just beyond the shore sits the Heart Lake Geyser Basin—steaming pools and occasional eruptions in a truly backcountry setting. The combo of a sizable alpine lake, nearby thermal features, and a prominent peak makes this area feel like its own little sub‑trip.

Getting there and the hike

The trail starts off the South Entrance Road. The first ~5 miles are mostly mellow; the final ~2.5 miles drop toward the lake—remember you’ll pay that back on the hike out. Many do it as a long day to the shoreline, but the smarter move is an overnight at a designated lakeside backcountry campsite so you can wander the geyser basin and rest those legs.

Add‑ons and longer trips

From camp, a steady climb up Mount Sheridan turns the trip into a summit day with big views. Strong parties link a 4–5 day “lollipop” loop tying the Snake River, Heart River, and Heart Lake—expect multiple cold river fords and mostly modest daily elevation.

Permits, rules, and closures

Overnight camping requires a backcountry permit, and lakeshore sites book up quickly in the lottery. The Heart Lake Trail is closed April 1–June 30 for bear activity. In thermal areas, stay on established trails—thin crust is no joke. Fishing and any boating need separate permits; follow food‑storage rules and fire regulations.

Wildlife and safety

This is prime bear habitat. Hike in a group, make noise, carry bear spray and know how to use it, and give wildlife plenty of space. Mosquitoes can be fierce in summer; some visitors report leeches in the lake—most people stick to a quick wade rather than a swim. River crossings on the longer loop can be swift and cold; use poles and good judgment.

Best time to visit

Plan for July through September after the seasonal closure. Start at dawn for cooler temps, better wildlife viewing, and more time to enjoy the shore. Weekdays see fewer hikers. Photographers get nice light on Sheridan in the morning and warm alpenglow in the evening if you’re camping.