Zion-Mount Carmel Highway and Tunnels

Zion-Mount Carmel Highway and Tunnels Review

Two narrow tunnels as old as the park itself lie between the east entrance and Zion Canyon on this breathtaking 24-mi stretch of Route 9. One was once the longest man-made tunnel in the world. As you travel the (1.1 mi) passage through solid rock, five arched portals along one side provide fleeting glimpses of cliffs and canyons. When you emerge into the daylight you'll find that the landscape has changed dramatically. Large vehicles require an escort and a $15 permit, available at the park entrance. The 0.5-mi Canyon Overlook Trail starts from a parking area between the two tunnels. The road is open April through October.