Obsidian Cliff
United States historic place / From Wikipedia, the free encyclopedia
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Obsidian Cliff, also known as 48YE433, was an important source of lithic materials for prehistoric peoples in Yellowstone National Park near Mammoth Hot Springs, Wyoming, United States. The cliff was named by Philetus Norris, the second park superintendent in 1878.[4] It was declared a National Historic Landmark in 1996.[1][3]
Quick Facts Nearest city, Coordinates ...
Obsidian Cliff | |
Nearest city | Mammoth Hot Springs, WY |
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Coordinates | 44.8189°N 110.7278°W / 44.8189; -110.7278 |
Area | 3,580 acres (14.5 km2)[1] |
NRHP reference No. | 96000973 |
Significant dates | |
Added to NRHP | June 19, 1996[2] |
Designated NHL | June 19, 1996[3] |
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