California Department of Transportation
 

Current State Route 203 Conditions

Before driving, check with the Caltrans Highway Information Network (CHIN) 800.427.7623


SR 203 
    [IN THE CENTRAL CALIFORNIA AREA & SIERRA NEVADA]
    IS CLOSED FROM THE MAMMOTH MOUNTAIN INN (MONO CO) TO THE 
MONO/MADERA CO LINE - FOR THE WINTER - MOTORISTS ARE ADVISED TO USE 
AN ALTERNATE ROUTE

    CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW
TIRES ON ALL 4 WHEELS FROM 2.5 MI WEST OF THE JCT OF US 395 TO 
MAMMOTH MOUNTAIN INN (MONO CO)

PLEASE RESEARCH CHAIN CONTROL LOCATIONS AS CALTRANS IS CURRENTLY WORKING TO 
UPDATE CHAIN CONTROL DESCRIPTIONS FOR CONSISTENCY WITH INTERNET MAPPING, 
LIKE GOOGLE MAPS & MAPQUEST.