|Nearest city||Bellaire, Michigan|
|Area||25 acres (10 ha)|
|NRHP reference #||73002151|
|Added to NRHP||June 19, 1973|
|Designated MSHS||December 11, 1970|
The Holtz Site, designated 20AN26 is an archaeological site located near Bellaire, Michigan. It is located on an island in the Intermediate River near Bellaire, Michigan. The site is surrounded by low, swampy areas.
The site was excavated in 1967 by researchers from Michigan State University. Artifacts found on the site indicate it was a Middle Woodland period encampment, dating to around AD 200-400. It was likely inhabited for a short time by people from southern Michigan who traveled north for a season.
Five different features were discovered at the site. These were:
- A small hearth measuring about 1.4 by 1.5 feet.
- A concentration of pot sherds.
- A modern fire pit.
- Materials associated with hearth activities, but no the hearth itself.
- A second concentration of pottery.
- "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
- The NRIS gives the location of the Holtz Site as "Address Restricted." However, Lovis gives the location of the site. Geo-coordinates are approximate.
- "Holtz Site (20AN26)". Michigan State Housing Development Authority: Historic Sites Online. Archived from the original on 2014-01-07. Retrieved 2014-01-01.
- William Lovis (June 1971), "The Holtz Site (20AN26), Antrim Co., Michigan; A Preliminary Report", The Michigan Archaeologist, 17 (2)
- Beth Blenz (1981), Encyclopedia of Michigan, Somerset Publishers, p. 496, ISBN 9780403099733
- "Archaeology in Antrim County", Michigan History, 64: 9, 1979
- William A. Lovis, Jr. (1971). "Holtz Site (20AN26), Antrim Co., Michigan; a Preliminary Report". The Michigan Archaeologist. 17 (2): 49–64.