We are planing a Trip thru Grand Canyon and Utah next summer. Anyone know the best route to get from Grand Canyon to Zion? We don't want to go all the way to Las Vegas. My maps show some secondary roads from Fredonia to Zion (thru the Kaibab Indian Reservation), and there is the tunnel entrance from the east side of the park. Has anyone used either of these routes? We are in a 37' motor home with a dingy. Also, any comments on the Campground in Zion will be appreciated. Can they handle big rigs?