Stay Safe in Yosemite’s Snow
Discover Yosemite's winter landscapes, from snow-dusted peaks to majestic mountains and endless seasonal activities. Mountain weather can be unpredictable, affecting roads and transportation. Stay informed and be prepared so you can safely enjoy the park's winter wonderland.
Know Before You Go
For up-to-date information on Yosemite's road conditions, call the 24-hour National Park Service Road Status line at 209.372.0200. Select option #1 from both menus. You can find additional information online on National Park Service Yosemite Current Conditions.
Road Conditions
Tire Chains
Additional Information
- Mud and Snow tires are typically designated with a "M+S" on the side of the tire and must have a minimum tread depth of 6/32 of an inch to be legal. Studded snow tires may be used if the tires are also rated as snow tires. If not, the tires must be chained as studs - do not replace chains. Studded snow tires are allowed but still require chains in R2 conditions.
- Tire traction devices (chains) can be link chain, cable chains, and/or spider straps.
- Any vehicle with a gross vehicle weight of 10,000 pounds must chain up—typically this applies to large vans and trucks.
- All vehicles towing trailers must have chains on one drive axle of the vehicle, even with 4-wheel drive and snow tires.
- If the trailer has brakes, it must also have chains on one axle.