Obsidian

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Obsidian Blade and Obsidian Cliff
Obsidian Cliff at Yellowstone National Park, Wyoming

NPS Photo / Tom Engberg

Obsidian text descriptor goes here. Video to be added.

Last updated: April 10, 2015

Contact the Park

Mailing Address:

16062 State Route 104
Chillicothe, OH 45601

Phone:

(740) 774-1126

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