A specific outing is described below. Source checks are dated; weather, closures, operating hours, and reservations can change before your trip.
Heart Lake fall-color walk
Climb through creekside forest and aspen scenery toward a smaller lake in the Mammoth Lakes Basin.
- Activity
- Hiking / nature outing
- Distance / format
- Out-and-back; uphill going out
- Effort / terrain
- See outing distance and practical notes
- Start here
- Heart Lake trailhead at Coldwater day-use area
This is the Mammoth-area Heart Lake. Allow time for the uphill approach and return by the same trail.
Details checked November 10, 2026 · Source & current notices ↗
Plan with official information
Use the official source for current closures, fees, reservations, and permitted activities. This directory is independent and does not issue permits.
Official destination information ↗