O'Neill Site

Location5 km south of Charlevoix, Michigan^[1]

Coordinates45°17′10″N 85°20′40″W / 45.28611°N 85.34444°W / 45.28611; -85.34444

Area5 acres (2.0 ha)

NRHPreferenceNo.71001019^[2]

O'Neill Site
U.S. National Register of Historic Places
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Location	5 km south of Charlevoix, Michigan[1]
Coordinates	45°17′10″N 85°20′40″W / 45.28611°N 85.34444°W / 45.28611; -85.34444
Area	5 acres (2.0 ha)
NRHP reference No.	71001019[2]
Added to NRHP	May 27, 1971

The O'Neill Site, also designated 20CX18, is an archaeological site located about 5 km south Charlevoix, Michigan. It was listed on the National Register of Historic Places in 1971.^[2]

It is a partially stratified Late Woodland period site, located near the mouth of Inwood Creek.^[3] Occupation of the site spanned approximately AD 1000 - 1455. Numerous stone tools, pottery, and house remains were found at the site.^[4]