East Fork Foss - Necklace Valley

Central Cascades

updated 3 weeks ago

The East Fork Foss - Necklace Valley trail is largely snow-free as of October 20. The road to the West Fork Foss Trailhead is suitable for all vehicles, with only minor potholes reported. However, the trail itself presents several obstacles. After crossing the East Fork Foss River, the trail becomes aggressively steep and rocky, with numerous downed trees requiring navigation. Some reports mention challenging routefinding, particularly in unmaintained sections after Big Heart Lake. While some crossings are manageable, the East Fork Foss River crossing can be thigh-deep and requires careful consideration, with no bridge or handwire in place.

Generated from 34 trip reports. Trails change faster than reports do, so check anything you’d turn around for.

What hikers ask about East Fork Foss - Necklace Valley

Generated from the most recent trip reports, newest 3 weeks ago. Check anything you’d turn around for.

The East Fork Foss River crossing is a significant obstacle and is not bridged. Reports indicate it can be thigh-deep and is a rocky crossing. Hikers have managed this crossing by fording, with some suggesting waterproof boots or water shoes. The last report from September 19 stated it was below knee height for 5'4" hikers and a simple crossing, while another from August 7 described it as knee-high for someone 6'1" but mostly mid-calf deep.

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Trail notes generated from recent reports. Conditions change fast.

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Central Cascades > Stevens Pass - West

Arrived at the West Fork Foss Trailhead at 2pm. The road was in great condition, with just a few potholes that could be easily navigated around. Two other cars were parked there. No empty self-issue p...

Central Cascades > Stevens Pass - West

Wanted to see what exactly the crossing of the East Fork Foss River at approximately 5 miles looked like after the historic December 2025 flood. I wasn’t prepared for a ford of the river, hiking alone...

Central Cascades > Stevens Pass - West

Did the necklace valley high alpine route as a two day overnight. Started from west fork foss - trail is in great condition and fall colors starting to emerge all the way up until Bigheart lake after ...

Central Cascades > Stevens Pass - West

What an epic trail! From the rolling ups and downs along the Foss River to the otherworldly boulder fields to the stunning views of Chimney Rock--wow! We hiked up to Emerald Lake on Saturday, up to Ta...

Central Cascades > Stevens Pass - West

Lost GoPro!Before my trip report, wanted to share that I lost my black GoPro Hero9, which was attached to a hand-held black plastic tripod, somewhere between Emerald Lake and the Tank Lakes turn-off. ...

Central Cascades > Stevens Pass - West

The west fork Foss road is closed for construction through the 11th. So I decided to forgo the road walk and try a bit more ambitious hike up to Jade, Opal, and the Necklace Valley. The river crossing...

Central Cascades > Stevens Pass - West

The trail up into the lakes basin can be divided into two distinct and very different sections- before and after the East Fork Foss River crossing.The 5 miles before the crossing is very easy and very...

Central Cascades > Stevens Pass - West

After reading trip reports about the loop hike from the West Fork Foss to the Necklace Valley trailheads, I decided the challenge of the traverse is beyond my comfort and skill set so I opted for some...

Central Cascades > Stevens Pass - West

Overnight trip 8/15-8/17. We took the Alpine Lakes High Route over Iron Cap and camped at Chetwoot Lake and Tank Lakes. This was a challenging trip that we'd been looking forward to doing for a while,...

Snoqualmie Region

Hiked to the E. Fork Foss River crossing Friday night and camped there. We just squeaked in next to a larger party, with the site just down the trail occupied as well.The river crossing was easy: it g...