-CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW  TIRES ON ALL 4 WHEELS FROM PRIEST GRADE TO THE YOSEMITE NAT'L PARK BOUNDARY   (TUOLUMNE CO) 
+CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW  TIRES ON ALL 4 WHEELS FROM PRIEST GRADE TO 0.5 MI WEST OF THE   YOSEMITE NAT'L PARK BOUNDARY (TUOLUMNE CO)