Home › Authors › Michael L. Hargrave 👤 Michael L. Hargrave 3 books Books by Michael L. Hargrave The Bridges site (11-Mr-11) The Bridges site (11-Mr-11) 1983 Archaeological investigations at the Bluff Shadow Site, Monroe County, Illinois 1982 Archaeological testing of the Archaeological testing of the Bridges site, Mr-11, Marion County, Illinois 1981