Pass Conditions

CA · US-395 / SR-203

Driving to Mammoth Mountain

This is a road-access page, not a resort snow report. Confirm lift and terrain operations with the resort.

Open / no control detected

Jct. 203 / Mammoth Off-Ramp _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _(15)0 _ (20)49

No chain controls are in effect at this time.

Pipeline observation: Jul 30, 2026, 8:10 PM UTC · Agency update: Apr 22, 2026, 8:11 AM UTC

Coverage:Caltrans CWWP2 chain-control points statewide, polled every 10 minutes.A clear R-0 point is not a guarantee that every road segment is clear. Check the linked Caltrans route report before departure.

Route and snow context

Primary access
US-395 / SR-203
Related pass
Sherwin Summit
24h analyzed snowfall
Not available at the pass point
Nearby SNOTEL depth
Not available — not measured at the road
72h NWS-grid forecast
Not available

Confirm with CA DOT Resort conditions

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NOHRSC is gridded analysis; SNOTEL is a nearby station; NWS grid forecasts are not road-surface forecasts. Signs and closures are authoritative.