Sheguiandah is a
Paleo-Indian archaeological site on the northeastern shore of
Manitoulin Island,
Manitoulin District,
Ontario,
Canada. It was originally discovered in 1951 by
Thomas E. Lee, who in the course of surface collections found artifacts indicating the site was ancient. He led excavation teams for the next four years. Based on the numerous artifacts they found, he estimated the earliest occupation date of about 30,000 years
BP. He noted there were
Paleo-Indian and
Archaic artifacts, primarily scrapers and blades, dating to about 12,000 BP. Public interest in the finds was so high that it contributed to passage of legislation in 1953 to protect archeological sites in Ontario.