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Wilderness permit for entry via Birch Lake in Inyo National Forest. Access to Jo...

Inyo National Forest · California
Wilderness permit for entry via Big Pine Creek South Fork in Inyo National Forest. Access to John Muir Wilderness and Ansel Adams Wilderness.
70% of the openings our scanner caught on Big Pine Creek South Fork were gone within 10 minutes.
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The quota season runs May 1 to November 1. Late July through September is best, once runoff has dropped and the ford is manageable. Avoid peak snowmelt if you are not confident crossing moving water.
Trailhead (5,000 ft)
Backcountry Tips
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High water early, then a straightforward ford. Storms in the afternoon.
Fitness and endurance required
Climbing, scrambling, or specialized skills
Steep dropoffs and fall potential
Route finding and trail clarity
Difficulty of bailing out mid-route
Backpackers comfortable with a ford and with following cairns on open ground.
Prior off-trail navigation and at least one unbridged creek crossing.
First-time Sierra backpackers, stock parties beyond Willow Lake, and anyone uneasy crossing moving water.
Big Pine Creek South Fork is an Inyo National Forest wilderness entry point above Big Pine, climbing the South Fork toward Brainard and Finger Lakes.
Inyo's quota season runs May 1 to November 1 in 2026, with reservations opening six months in advance at 7 am Pacific and additional permits released two weeks ahead. Outside that window the trailhead is non-quota with a two-week booking window.
Two things make this the harder fork. Inyo states the bridge across the South Fork Creek was destroyed by avalanche in spring 2011, so the crossing is a ford, and the trail beyond Willow Lake becomes indistinct with rock cairns marking the way. The permit does not include the North Fork.
Inyo National Forest describes the Big Pine South Fork trail to Brainard and Finger Lakes climbing beneath the Norman Clyde and Middle Palisade Glaciers with views of the jagged crest of the Middle Palisades. It is the quiet fork, and the reason is right there in the agency's own text: the bridge is gone and the trail runs out.
Inyo is direct about the crossing: the bridge across the South Fork Creek was destroyed by avalanche in spring 2011, so expect to get your feet wet and use caution with high spring runoff.
Above Willow Lake the trail becomes indistinct, with rock cairns marking the way to the upper lakes. Brainard and Finger Lakes sit beneath the Norman Clyde and Middle Palisade Glaciers.
This permit does not include the North Fork, and Inyo asks you to check the area map to select the correct trail. Campfires are prohibited, and stock is not recommended beyond Willow Lake.
You get wet feet early and you stay honest the rest of the way. Above Willow Lake the trail stops being a trail and becomes a line of cairns across slabs, with the Middle Palisade crest getting bigger every hour.
Required and recommended gear for Big Pine Creek South Fork
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The bridge was destroyed by avalanche in spring 2011. Expect a ford.
Where the maintained trail ends and cairns take over.
Beneath the Norman Clyde and Middle Palisade Glaciers.
The upper lake under the Middle Palisade crest.
No. Inyo National Forest states the bridge across the South Fork Creek was destroyed by avalanche in spring 2011, so expect to get your feet wet and use caution with high spring runoff.
No. Inyo states this permit does not include the North Fork and asks you to check the area map to select the correct trail.
Inyo says the trail beyond Willow Lake becomes indistinct, with rock cairns marking the way to the upper lakes. Bring a map and be prepared to route-find.
No. Inyo prohibits campfires on this entry point.
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Write the First ReportDawn on the Middle Palisade crest from Finger Lake.
Late afternoon at Brainard Lake, when the glaciers above catch side light.
There is nothing to avoid. This is one of the quietest Big Pine basins.
Consider these alternatives if your preferred dates aren't available.
The neighbouring fork to the numbered Big Pine Lakes and the Palisade Glacier.
Maintained trail the whole way and better-known lakes, on a busier permit.
Over the crest into Dusy Basin and the John Muir Trail.
Better trail and bigger country, on the most contested Bishop-area permit.
A steep crest crossing south of Big Pine to the John Muir Trail.
Much more climbing, and 2019 fire damage still on the ground.
Nearby campgrounds to complete your Big Pine Creek South Fork trip
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