Obsidian Cliff ID: 1428 | This file appears in: Indian Removal from Yellowstone National Park Native Americans collected obsidian from Obsidian Cliff and used it to make a variety of tools and weapons. | Creator: NPS | Source: “Obsidian Cliff.” National Park Service. https://www.nps.gov/yell/learn/historyculture/obsidiancliff.htm Download Original File CreatorNPSSource“Obsidian Cliff.” National Park Service. https://www.nps.gov/yell/learn/historyculture/obsidiancliff.htm "Obsidian Cliff" appears in: Indian Removal from Yellowstone National Park
