Duck Pass Trail to Duck Lake

A lung-busting climb from the Mammoth Lakes Basin that passes Arrowhead, Skelton, and Barney Lakes before cresting to a sweeping view of wind-swept Duck Lake on the Sierra crest.

Trail Overview

This trail earns its strenuous rating in the final two miles. The switchbacks above Barney Lake are relentless and fully exposed. In July and August, this section is brutal after 10am. Afternoon thunderstorms are a real risk in summer — be off the exposed upper section by noon.

This Hike Is For You If…

Experienced day hikers comfortable with sustained climbs and high altitude. The lower lakes section to Arrowhead Lake works for fit intermediates wanting a shorter objective.

Skip This Hike If…

Skip this in July and August unless you can start before 7am. Skip if you have had altitude sickness symptoms in the past 24 hours.

What to Expect on Trail

Terrain: Well-maintained singletrack with sustained switchbacks above Barney Lake. Rocky granite slabs near Duck Lake.

Shade: Partial

Water: Seasonal. Creek along lower section. Dry above Barney Lake. Carry extra.

Views: Outstanding

Crowds: Popular Mammoth trail. Lower lakes crowded on weekends.

Dogs: Yes, dogs are welcome on this trail.

Best Arrival: Before 7am on weekends.

This is a Tier 1 sourced review. Trail information is based on published sources and research. Andrew has not personally hiked this trail yet. Photos and firsthand sensory detail will be added when upgraded to Tier 2.