Obsidian Cliff

Named in 1879 by then Park Superintendent, P. W. Norris, Obsidian cliff runs south along Beaver Lake before turning east, continuing on for two more miles, and raising to a height of 200 feet above the earth.

While building a ...

National Historic Landmark - Obsidian Cliff

Obsidian Cliff occupies a unique position in national prehistory as a singularly important source of lithic materials for prehistoric peoples of interior western North America. It is recognized as an exceptionally well preserved, heavily utilized lithic source that served the ...

Obsidian Cliff

Obsidian Cliff, 11 miles south of Mammoth Hot Springs, is at the northern end of Beaver Lake in Yellowstone National Park. The cliff forms the eastern wall of a narrow cut in plateau country. At an elevation of nearly 7,400 ...