These photos are of canyons in the southwest of the U.S. They include the Grand Canyon of Arizona, Bryce Canyon in southwestern Utah, two photos of Glenwood Canyon in Colorado, and two photos of the Colorado River gorge northeast of Moab, Utah. (Unless otherwise indicated, if the date in the photo is the 22nd, it's from the Grand Canyon, if the date in the photo is the 23rd, it's from Bryce Canyon.)