Mammoth Lakes Basin Area Trails

Inyo National Forest - Wilderness Permits, CA

Deer Lakes JM00


ICE and SNOW ALERT- Mountain elevations in this area traditionally have ice and snow until late June or early July.

Permit Availability

Entrance Description

Deer Lakes trail is sometimes called the Crystal Crag trail. This trail begins with a steep climb up the ridge from Lake George to the Mammoth Crest and yields spectacular views of Crystal Crag and Crystal Lake. The trail continues along the rim of the Sierra Crest with views into the back country toward the Middle Fork of the San Joaquin River. Deer Lake is at the end of the trail. If you want to connect to the John Muir Trail use the Duck Pass or Red Cones trail.

Know Before You Go:


Deer Lakes Area:

  • No campfires above 10,000 ft.
  • Food and refuse must be stored so that animals cannot get into the food or trash. Surrounding areas require use of bear containers.
  • Camping is not allowed at Crystal Lake.
  • There are several different trails in the area Check the area map for the correct trail name.
  • John Muir Wilderness regulations apply.
  • Deadline: Reservation will be canceled unless the permit pick up instructions are completed before the deadline. Instructions are in the confirmation letter.
  • Only the group leader or alternate leader may pick up the permit; the person picking up the permit must be going on the wilderness trip.
  • BE SURE YOUR DATES AND TRAIL ARE CORRECT - The entire group must start on the trail on the entry date listed. Reservations cannot be changed or transferred.

USFS Webpage for: Deer Lake.


A: Available for online reservation (click to book entry date)
L: Accepting Lottery Application (click to apply for the lottery)
W: Available at the Facility
R: Reserved
C: Closed
X: Not available
Discover and reserve camping, lodging, permits, tours and more at America's parks, forests, monuments and other public lands with Learn more about us, or about any of our agency partners below:
Bureau of Land Management Federal Highway Administration National Oceanic Atmosphere Administration Smithsonian Institution USDA Forest Service US Army Corps of Engineers US Fish and Wildlife Service National Park Service Bureau of Engraving and Printing Tennessee Valley Authority Bureau of Reclamation National Archives Records Administration