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Mammoth Crest Loop

Traverse the top of a stunning mountain ridge.

Hiking Difficult

21 km
980 m
980 m
5-6 hrs
Low Point
2.7 km
High Point
3.4 km
Mammoth Crest Loop Map

"Mammoth Crest is the long sweeping ridge that forms the southwestern rim of the Mammoth Lakes Basin,” writes Greg Enright on SummitPost.org. "The eastern end of Mammoth Crest is composed of dark jagged peaklets that are rarely visited, but the northwestern end has a half mile granite cliffband with a sandy forested top.”


This loop hike ascends directly from Lake Mary, past Lake George, to gain the top of the Crest. From there, the hike traverses the top of this stunning mountain formation all the way to Duck Pass, completing the loop by descending the Duck Pass Trail.

From the top of the Crest, hikers are rewarded “stunning, far reaching views of the Ritter Range, Middle Fork of the San Joaquin River Canyon, Duck Lake, and the Silver Divide,” according to Hiking & Walking. The trail also passes Deer Lakes on the backside of the Crest and provides the option to detour to Duck Lake.

As long as you stick to the defined trail, the route is relatively easy to follow… although a map is recommended. The trail tread isn’t too difficult or technical. However, this area does provide several options for off-trail scrambling and peak bagging. If you venture off the beaten path, be prepared for a challenge!

Sources: https://www.summitpost.org/mammoth-crest/695333 http://hikingwalking.com/index.php/destinations/ca/cases/mammothlakes/mammothcrest https://www.mammothtrails.org/trail/12/mammoth-crest-trail/ https://weekendsherpa.com/stories/hike-the-mammoth-crest-trail/



Hiking trails where obstacles such as rocks or roots are prevalent. Some obstacles can require care to step over or around. At times, the trail can be worn and eroded. The grade of the trail is generally quite steep, and can often lead to strenuous hiking.

Medium Exposure

2 out of 4

The trail contains some obstacles such as outcroppings and rock which could cause injury.


3 out of 4

Little chance of being seen or helped in case of an accident.

Best time to visit

between July and October


  • Alpine
  • Picturesque
  • Water features

Similar routes nearby

Guidebooks in this area