National Register Listing
Listed in National Register of Historic Places in 1996.
Obsidian Cliff
a.k.a. 48YE433
Approx. 13 mi. S of Mammoth;E. side of US 89, S. of ObsidianCliff Kiosk, Mammoth, WY Local significance of the site: Prehistoric; Commerce; Industry
Listed in National Register of Historic Places in 1996.
About National Register Listings
The National Register of Historic Places is the official list of the Nation’s historic places worthy of preservation. Authorized by the National Historic Preservation Act of 1966, the National Park Service’s National Register of Historic Places is part of a national program to coordinate and support public and private efforts to identify, evaluate, and protect America’s historic and archeological resources.