Some of the most beautiful night skies in the United States can be found on public lands managed by the U.S. Bureau of Land Management (BLM), a division of the U.S. Department of the Interior. Because the landscapes are pristine and untouched — preserved as part of the BLM mission, for future generations of Americans — the nights are truly dark and free of the light pollution plaguing many areas of the country. In honor of International Dark Sky Week, BLM posted this stunning series of images captured on our public lands by their photographer, Bob Wick — and for more incredible images of American wilderness, follow BLM on tumblr.

Grand Canyon Parashant National Monument, Arizona

Sonoran Desert, Arizona

Piper Mountain Wilderness, California

Rio Grande, New Mexico

Kingston Range Wilderness, California