This is my collection of desktop backgrounds taken around the Rocky Mountains of Colorado, the Grand Canyon, Arches, Canyonlands, the Grand Tetons and Yellowstone.
Once you tap on an image, be sure to use the download icon in the lower right corner to view the image full size. From there you can save it (press and hold on most phones and tablets) and set it as a background just like you would with any other image. Horizontal images are intended for computers and vertical for phones, tablets may use either.
These photos are provided only for personal use as a desktop background, please contact me if you'd like to use them for any other purpose. Thanks!