U.S. News Insider Tip: Don't blink or you'll miss the windows bored through the walls of the tunnel ... Bryce Canyon and the Grand Canyon. With the creation of the 25-mile-long Zion-Mount Carmel ...

Zion National Park or Bryce ... Mt. Carmel Highway is an easy way to get the scope of Zion Canyon. This 2-lane highway connects Springdale to East Zion via the historic Zion-Mt. Carmel Tunnel.