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|Nearest city||Gering, Nebraska|
|NRHP Reference #||66000452|
|Added to NRHP||October 15, 1966|
|Designated NHL||January 20, 1961|
At its designation, it was stated:
Discovered in 1931, this is the first site of the middle prehistoric period in the central and northern Plains to be excavated by archeologists.
- National Park Service (2007-01-23). "National Register Information System". National Register of Historic Places. National Park Service.
- "Signal Butte". National Historic Landmark summary listing. National Park Service. Retrieved 2008-05-06.
- Note: A National Register of Historic Places Inventory-Nomination document should be available upon request from the National Park Service for this site, but it appears not to be available on-line from the NPS Focus search site.
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