Kelso Sand Dune Ripples, Mojave Desert National Preserve, California
The Kelso Dunes are the largest sand dunes in the Mojave Desert, with the tallest sand dune rising 650 feet tall. The Mojave Desert National Preserve contains some of the largest and tallest sand dune fields in the U.S. In the low light of sunset, the low angle sunrays accentuate the ripples in the sand dunes, causing them to have an orange glow.