Footprints in the sand, Eureka Dunes. The Eureka Valley Sand Dunes are California's tallest sand dunes, and one of the tallest in the United States. Rising 680' above the floor of the Eureka Valley, the Eureka sand dunes are home to several endangered species, as well as "singing sand" that makes strange sounds when it shifts. Located in the remote northern portion of Death Valley National Park, the Eureka Dunes see very few visitors.
Location: Eureka Dunes, Death Valley National Park, California
Image ID: 25271
Blue whale footprints, the circular marks left behind on the ocean's surface after a whale has swum by.
Species: Blue whale, Balaenoptera musculus
Image ID: 26041