Mammoth Backcountry (Sherwin & Blue Diamonds)

Mammoth Lakes · near Mammoth Lakes · Eastern Sierra

Nordic & Snowshoe

At a glance

Best season
Dec–May; snow-sure deep snowpack (~8,000–9,500 ft)

What is here

Activities
backcountry · snowshoe
Setting
forest
Amenities
Deep eastern-Sierra powder · Blue-diamond forest tours · Sherwin Bowls objectives · Rentals in town
Best for
Backcountry touring in deep snow
Features
Famous Mammoth powder · Marked forest tours · Big Sherwin Bowls · Long touring season

Worth knowing

Hazards
Sherwin Bowls are avalanche terrain · High elevation & winter navigation · Cold, wind, storms · Avalanche kit & forecast for steeper terrain
Good for a first timer
No

Guides, rentals and operators

Rentals
Yes

Nordic & Snowshoe detail

Venue
backcountry
Ability
advanced
Snow
5
Trail notes
Snow-sure eastern-Sierra backcountry right out of Mammoth — blue-diamond-marked forest tours and the big Sherwin Bowls for skiers and snowshoers, in famously deep powder
Terrain note
~8,000–9,500 ft; marked routes & open bowls; very deep reliable snow
Intl tip
Superb backcountry Nordic and snowshoe terrain right at the edge of Mammoth, amid California's deepest snow. Gentle blue-diamond-marked forest tours around the Lakes Basin and Shady Rest suit intermediates and snowshoers; the sweeping Sherwin Bowls above town draw experienced ski tourers to snow-sure powder, with a season often into May. But the Sherwin Bowls are genuine avalanche terrain (carry avalanche gear/training, check the forecast, go with capable partners); even marked tours need warm layers and storm awareness. Rentals and guides in town.

The guide

Mammoth Lakes sits amid some of the deepest, most reliable snow in California, and beyond the groomed tracks it offers superb b…

In the Guidebook

Everything above is yours for free. The written guide to Mammoth Backcountry (Sherwin & Blue Diamonds) — what it is actually like, and what we would tell a friend before they went — comes with the Guidebook.

Getting there

Coordinates
37.6, -118.98

Driving directions

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