Duck Pass Loop

This hike visits four nice lakes and then climbs a 10,800-ft. pass to join the Pacific Crest and John Muir Trail. The climb to the pass is quite scenic, with views of the lakes basin and rugged peaks lining the valley. Just beyond the pass is an overlook, with panoramic views of Duck Lake cradled in a cirque of 11,000-ft peaks and ridges. To the southwest, Silver Peak and the Silver Divide fill the skyline.

The trek is part of the longer Mammoth Crest trail, which provides expansive views of the Minarets and Silver Divide.

The trail can be used as part of extended backpacking trips. Beyond Duck Pass the trail drops down to the Pacific Crest/John Muir Trail and continues through beautiful forest to eventually reach the Lake Mary Road and back to your starting point.

  • Highlights: Dramatic alpine lakes, stream, forest
  • Near: Mammoth Lakes, CA
  • Distance: 18 miles round trip
  • Elevation Gain/Loss: 1600 ft
  • Hike Time: 2 days
  • Difficulty: 8/10
  • Trail Condition: well maintained trail
  • Best Season: Summer, Fall
  • Wilderness Permits:
  • Mammoth Lakes Ranger Station: >>CLICK HERE<<
  • Dog Friendly: Yes
  • Kid Friendly: Yes
  • GPX File Download: >>CLICK HERE<<

Getting to the trail head:

From Los Angeles – 5 fwy (north) to 14 fwy (north) to hwy 395 (north) to hwy 203 (left) to Minaret Rd. (right) to Mammoth Mountain Ski Resort. Take shuttle bus down to Agnew Meadows and to trail head.

Google Map Link


Trail Detail Map


Trail Profile


Inyo Forest Map



Duck Lake

Barney Lake

Barney Lake

Skelton Lake

Skelton Lake


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