Lyall Glacier
SKI TOURhardNorth Cascades|November 29, 2025

Lyall Glacier

A long day into the Lyall Glacier basin in full winter overcast — skinning through cloud, breaking above the inversion to see the whole North Cascades, then dropping back into the fog for 2,000 feet of untracked powder.

Elevation Profile

4,8395,2845,7286,1726,6177,0610.0 mi1.9 mi3.8 mi5.7 mi7.6 mi9.5 miElevation (ft)
Nova's Trail Report
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Into the Cloud

The day after Cutthroat. My legs were tired from yesterday's 4,300 feet of climbing. My human's were too, though he wouldn't say it. We started from Rainy Pass in the dark, the headlamp cutting a tunnel through falling snow that had already covered our tracks from the drive in.

By the time the forest brightened enough to see without light, we were in the cloud. Not above it, not approaching it — in it. The world reduced to fifty feet of visibility, every tree a grey shape, every ridge a suggestion. I navigated by nose. The snow smelled different up here than it had yesterday — wetter, denser, the air thick with moisture.

Nova walking along a skin track through thick fog, rocky terrain barely visible through the cloud ahead, snow-laden forest to the right
Nova walking along a skin track through thick fog, rocky terrain barely visible through the cloud ahead, snow-laden forest to the right

The rime was building on everything. Every branch, every needle, every exposed surface wore a coat of ice crystals that grew as we climbed. I stopped to look at one — a subalpine fir branch transformed into something from another planet, every needle furred with frost.

Macro close-up of rime ice crystals growing on subalpine fir needles, each needle coated in delicate hoarfrost
Macro close-up of rime ice crystals growing on subalpine fir needles, each needle coated in delicate hoarfrost

Above the Inversion

Then we broke through. At 6,500 feet the cloud ended like a ceiling and the world above it was a different place entirely. The overcast was below us now — a flat grey sea filling every valley, the peaks rising out of it like islands. The sky above was grey-white but the visibility was suddenly infinite.

Nova in her grey coat lying in deep snow on a ridge above the cloud inversion, snow-covered North Cascades peaks rising through the cloud layer below
Nova in her grey coat lying in deep snow on a ridge above the cloud inversion, snow-covered North Cascades peaks rising through the cloud layer below

I lay in the snow and looked at it. The whole North Cascades, the peaks I'd climbed all season, floating above a sea of cloud. The valleys were gone. The roads were gone. Just summits and ridges and snow and silence.

Snow-covered ridge above the cloud inversion with peaks visible through gaps in the cloud, dramatic overcast sky
Snow-covered ridge above the cloud inversion with peaks visible through gaps in the cloud, dramatic overcast sky
Nova in her grey coat lying on a steep snow slope above the cloud layer, looking down into the fog with distant peaks barely visible
Nova in her grey coat lying on a steep snow slope above the cloud layer, looking down into the fog with distant peaks barely visible

The Glacier Basin

We dropped off the ridge and traversed south into the Lyall Glacier basin. Below the ridge, the cloud swallowed us again — back into the grey, back into fifty-foot visibility, back into the quiet muffled world of fog and snow. The terrain steepened and narrowed. Rocky crags appeared above us, dark against the white.

Nova walking through deep snow in a rocky cirque below dark cliff bands, overcast sky, her grey coat visible
Nova walking through deep snow in a rocky cirque below dark cliff bands, overcast sky, her grey coat visible

The basin was enormous. A wide glacial cirque ringed by walls of rock, the headwall rising steeply above us — dark faces striped with snow couloirs, the scale making everything feel very small. Nova included. She was a golden speck at the base of a mountain.

Nova running across the glacier basin floor below a massive steep rocky mountain face, untracked snow stretching in every direction
Nova running across the glacier basin floor below a massive steep rocky mountain face, untracked snow stretching in every direction

We climbed to 7,081 feet — the high point of the day, just below where the rock got too steep and the snow too thin on the exposed upper faces. My human studied the headwall. Lines for another day, maybe. With more visibility. With less fog.

The Descent

Then we dropped in. Two thousand feet of untracked powder from the upper basin to the valley floor. The cloud made it strange — no horizon, no depth perception, just snow falling away beneath us and the sense of speed without visual reference. My human rode by feel, making turns based on the angle under his board rather than what he could see ahead. I ran by nose and instinct, which is how I do most things anyway.

POV descent through the Lyall Glacier basin — Nova bounding through deep powder below the rocky headwall in flat light

The snow was extraordinary. Cold, deep, and completely untouched — not a track in the basin except ours. Every turn threw up a wave of powder that hung in the still air and settled slowly. In the fog it looked like smoke.

The Exit

Nova walking ahead on a skin track through deep snow and bare larch trees, rocky cliff wall above, overcast
Nova walking ahead on a skin track through deep snow and bare larch trees, rocky cliff wall above, overcast
Nova in her grey coat walking along a skin track in a snow-covered drainage, rocky terrain on both sides, fog filling the valley behind
Nova in her grey coat walking along a skin track in a snow-covered drainage, rocky terrain on both sides, fog filling the valley behind

Back through the forest. Back to the car. Nine and a half miles, forty-three hundred feet of gain in two days' worth of legs. The fog never lifted. We never needed it to.

Some days the mountains give you bluebird sky and sharp horizons and you can see for fifty miles. Some days they give you cloud and rime and a world reduced to what's directly in front of you. Both days have something. This one had powder that nobody else would ever touch, in a basin that nobody else would ever see that way, on a morning where the only tracks in the entire drainage belonged to a dog and her human.

That's enough.

Photos

Trail Stats

Difficulty
hard9/12
Trail TypeOff-trail / Scramble
Rating
🐾🐾🐾🐾🐾
Distance9.5 mi
Elevation Gain4,337.658 ft
Elevation Loss4,435.845 ft
Max Elevation7,064.006 ft
Duration6h 46m
RegionNorth Cascades
DateNovember 29, 2025
ConditionsContinuous deep snow from the trailhead at 4,900 feet. Cloud layer sitting at 6,000-6,500 feet — skinning through fog below, clear above. Rocky terrain in the glacier basin with cliff bands above 6,800 feet. Deep unconsolidated snow throughout.
PermitsNone required
Download GPX Track

Tags

splitboardski-touringglacierpowdercloud-inversionnorth-cascadesrainy-passdog-friendly
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