The Calico Hills are an awesome way to spend your time at Red Rock Canyon in Nevada in the American Southwest. You can climb in and up and around them while exploring the caves, canyons, boulders, pools of water, and enjoying the views of the surrounding mountains & desert. The ancient sand dunes are reminiscent of the Colorado Plateau Kayenta & Navajo Sandstone Formations that cover the Four Corners and are just as exciting to adventure in.