Zion-Mt. Carmel Tunnel
If your vehicle is over 11’4” (3.4m) high, or wider than 7’10” (2.4m), you will need to arrange a $15 tunnel permit for an escorted pass through the tunnel. The fee is payable at the entrance stations before you reach the tunnel, so it’s important to measure your vehicle in advance if you think it could be cutting it close. No pedestrians or bicycles are permitted at any time of year, and advance notice is required in winter from November 1-March 9th.