Human Intrusions
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Saguaro National Park, West District, Arizona
Navajo Tribal Lands
Death Valley National Park, California
Denali National Park, Alaska
Yellowstone National Park, Wyoming
Poplar Tree Lake, Tennessee
Coral Pink Sand Dunes State Park, Utah
Salt River Canyon, Arizona
Gold Butte National Monument, Nevada
Great Sand Dunes National Park, Colorado
Death Valley National Park, California
Big Dunes Recreational Area, Nevada
Death Valley National Park, California
Coral Pink Sand Dunes State Park, Utah
Death Valley National Park, California
Ramsey Canyon Preserve, Arizona
Yellowstone National Park, Wyoming
Rocket launch from Vandenberg Air Force Base, California, as seen from Tucson, Arizona