A couple of friends and I are planning on going on a trip somewhere around 2 weeks in length towards the end of May. We are leaving from Southeast Missouri and will be heading out West to see things like Monument Valley, Coyote Butte, and other things like that. We plan on circling around, going up through Utah, Wyoming, and Nebraska on our way back to Missouri. We are in the beginning stages of planning and I'd like to know your suggestions for sights to see, things to do, and some things that would just knock it all out of the park. We'll be going through Oklahoma, North Texas, New Mexico, Arizona, Utah, Wyoming, and Nebraska. Thank you all!