The Grand Circle
The Grand Circle refers to tourist destinations in the US states of Arizona, Nevada, New Mexico, Colorado and Utah. The Grand Circle features some of the most spectacular national parks in the American West: 
 Zion
 Bryce Canyon
 Capitol Reef
 Arches
 Canyonlands
 Mesa Verde
 Grand Canyon
 Petrified Forest

To promote travel in the region, the Grand Circle Association, a not-for-profit coalition of businesses and destinations, was founded in 1983. Web 
 GrandCircle.org
 America's Byways: National Scenic Byways Online

References 

Tourism regions of the United States