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Lava Cast Forest and Big Obsidian Flow

Lava Cast Forest, Big Obsidian Flow, Newberry National Volcanic Monument

Lava tree molds and volcanic glass are but two of the many volcanic features to be found at the Newberry National Volcanic Monument. Find a Ranger while out on a hike in Lava Cast Forest! from 10am – 1pm every Sunday until Labor Day. Join a ranger at the Big Obsidian Flow Trailhead for a guided hike and learn about the geologic and cultural history of the Newberry Caldera.