Avalanche Gulch — Spring Ski

Mt. Shasta’s Avalanche Gulch is a straightforward line on paper. In reality, it’s a timing problem stretched across 7,000 vertical feet.

It’s one of the most accessible big ski mountaineering routes in North America. Not technical in the traditional sense, but it asks for fitness, awareness and a system that holds up when the day starts at 2 a.m.

When everything lines up, the descent follows a clean spring rhythm. Firm up high, softening as you drop and turning into full corn near the bottom. Miss the timing and the same line becomes something else entirely.

By The Numbers

• Route: Avalanche Gulch via Bunny Flat

• Summit: 14,179 ft / 4,322 m

• Vertical: ~7,000 ft / 2,130 m

• Distance: ~10–12 miles

• Start: 2:00 a.m.

• Summit Window: ~8–9 a.m.

• Aspect: South / Southeast

• Season: Late April through May

We left Bunny Flat (6,950 ft) at 2 a.m., moving by headlamp through the trees toward Horse Camp. The lower mountain is low-angle and often patchy late season, but it gives you time to settle in before the terrain opens.

Above Horse Camp (~7,900 ft), the line becomes obvious. A wide open face rising toward Helen Lake with no real route finding, just pacing.

From there, the climb is about efficiency. The skin track stretches upward across open terrain and small decisions start to matter more. Helen Lake (10,400 ft) is the natural reset point before the mountain steepens.

Above that, the tone shifts. Skinning gives way to bootpacking depending on conditions as the route pushes toward Red Banks (~12,800 ft). This is where things tighten up. The rollover is often firm and demands attention.

Above Red Banks, exposure builds and the wind becomes real. The summit plateau flattens out but rarely feels easy. Most days are decided here, not by ability but by what the mountain allows.

The summit sits at 14,179 ft. It matters, but it’s not the objective. The descent is.

Avalanche Gulch runs on a daily cycle. In late April through May, the snow transitions from overnight freeze into spring corn as the sun moves across the face. Go too early and you’re on refrozen surfaces; go too late and the snow turns heavy and unstable.

On this climb, the upper mountain stayed firm, the middle broke into crust pockets and the lower finally opened into corn. We were about two hours early, close enough to see it and far enough to feel it.

A typical push starts between 1 and 3 a.m. with a summit target around 9 a.m. That timing isn’t arbitrary; it’s what aligns the descent with the mountain. Wind is the variable that overrides everything. It can shut down the upper mountain fast, even when the rest of the system looks good, so checking conditions the night before isn’t optional.

Logistics are simple. Mt. Shasta City is the last stop for fuel, food and water. Service drops at the trailhead, so navigation needs to be handled ahead of time. Permits are self-issued at Bunny Flat, including a summit pass and wag bag above 10,000 ft.

We staged out of the Mt. Shasta KOA. Quiet, clean and predictable. The kind of place that lets you focus on the start instead of solving problems.

“I forgot my headlamp.”

Not really. It was there. It just wasn’t charged.

That’s the difference between packing and having a system.

Shasta doesn’t demand perfection; it exposes whatever isn’t dialed. The early start, the scale and the conditions don’t create problems; they reveal them.

Avalanche Gulch is simple to understand and hard to execute well. Success comes down to timing, preparation and having a system you can rely on without thinking.

GEAR LIST 

Everything was already dialed, packed the night before into our RUX 70Ls, each piece with its place. That kind of system matters more than you think. At 2 a.m., in the cold and dark, you are not searching, you are just moving. The RUX makes that possible, turning what could be a scramble into something smooth and automatic.

Personally, I like to pack down all the things noted below within the 2L packing pocket and the 10L packing cube. Keeping things separated makes the inside of my touring bag a little more organized, which makes it a little bit easier to find the essentials when your fingers are cold and the wind is howling.

Ski Gear

• Touring skis with tech bindings + poles 

• Touring boots

• Skins + skin wax

• Ski crampons

• Ice axe

• Crampons

• Helmet

• Beacon shovel probe

Layers

• Breathable base layers

• Puffy jacket

• Waterproof/windproof jacket

• Waterproof/windproof pants

• Gloves x 2

Carry - 30L+ Backpack

• Headlamp fully charged

• 1–2L water + electrolytes

• Caloric-dense snacks

• Sunglasses and/or goggles

• Sun block

• Offline navigation

• Small repair kit

• First aid kit + whistle + Utility Straps