Mammoth Crest Loop
Upcoming
Itinerary
Duck Lake Pass Trailhead
5.4 mi • 2,100 ft gain
Deer Lakes
7.3 mi • 900 ft gain
Duck Lake Pass Trailhead
How to get a permit
This trip requires a Inyo National Forest Wilderness Permit. Reservations depend on your start date:
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Trips starting between November 2, 2025 and April 30, 2026
Permits required. No quota.
Permit details
Here is how to fill out the Inyo National Forest Wilderness Permit application:
| Permit Type | Overnight |
|---|---|
| Entry Point | Deer Lakes |
| Exit Point | Deer Lakes |
| 1st night Camp Area | Deer Lakes |