Castle Peak & Peter Grubb Hut

Donner Summit · near Soda Springs / Truckee · Sierra Nevada / Yosemite

Nordic & Snowshoe

At a glance

Best season
Dec–Apr; snow-sure summit terrain (~7,200–9,100 ft)

What is here

Activities
backcountry · snowshoe
Setting
summit
Amenities
Iconic Donner Summit backcountry · Peter Grubb Hut (Sierra Club) · Castle Peak & Round Valley · Snow-sure high terrain
Best for
Backcountry touring & a classic hut trip
Features
Beloved Peter Grubb Hut · Classic Castle Peak tour · Snow-sure summit terrain · Overnight hut adventure

Worth knowing

Hazards
Avalanche terrain higher up — check the forecast · Route-finding & winter navigation · Cold, wind, whiteouts · Hut requires reservation; carry the essentials
Good for a first timer
No

Guides, rentals and operators

Rentals
No

Nordic & Snowshoe detail

Venue
backcountry
Ability
advanced
Snow
5
Trail notes
Classic Donner Summit backcountry — snowshoe or ski-tour up toward Castle Peak and Round Valley, with the beloved Sierra Club Peter Grubb Hut as an overnight or turnaround goal
Terrain note
~7,200–9,100 ft; ungroomed backcountry; reliable deep snow
Intl tip
Classic, accessible Donner Summit backcountry: the snowfields and forests below Castle Peak, gateway to Round Valley and the beloved Sierra Club Peter Grubb Hut — a rustic A-frame reachable by a ~2-mile tour and available by reservation for magical overnights, or a scenic day-tour turnaround. Strong parties push on to Castle and Basin Peaks. Genuine backcountry: higher slopes are avalanche terrain (check the Sierra Avalanche Center forecast), carry navigation and the ten essentials, expect cold, wind, whiteouts. A ski-touring rite of passage.

The guide

Just north of I-80 at Donner Summit lies some of the most classic and accessible backcountry Nordic terrain in the Sierra: the …

In the Guidebook

Everything above is yours for free. The written guide to Castle Peak & Peter Grubb Hut — what it is actually like, and what we would tell a friend before they went — comes with the Guidebook.

Getting there

Coordinates
39.36, -120.35

Driving directions

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