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U.S. Department of the Interior sent this bulletin at 09/09/2016 02:01 PM EDTHaving trouble viewing this email? View it as a Web page.

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09/09/2016 11:37 AM EDT

Swirling star trails grace the night sky at Pinnacles National Park in California, the nation’s 59th and newest national park. 23 million years ago, volcanoes erupted, flowed and slid to form the park’s towering rock spires and rare talus caves that you can hike through today. Photographer Aron Cooperman journeyed 45 minutes through a cave to reach Bear Gulch Reservoir in time to capture this spellbinding scene. Photo courtesy of Aron Cooperman.