Last Eruptive Event Newberry Crater

Newberry Crater... it's last eruption of activity created the Big Obsidian Flow. It happened about 1300 years ago and caused masses of Obsidian to be scattered everywhere with big lava flows. Big Obsidian Flow is about 1.8 kilometers 6000 feet long and locally thicker than 20 meters 65 feet. The Obsidian pieces run enormous here. The boulders are really amazing to see in person. Obsidian is

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