It is advised to carry snow chains/cables since the California Highway Patrol usually requires all vehicles, including 4-wheel drives, to have chains/cables from November 1 to April 1.
Before you leave home, make sure your chains/cables fit your tires. Occasionally, the camp is inaccessible without chains or 4-wheel drive. Check weather conditions before you start out. For road conditions, call (800) 427-7623 and follow prompts.