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 by Aron Cooperman. Posted on Tumblr by the US Department of the Interior, 9/9/16.