The Jack's Reef Corner-Notched points (Ritchie 1971a:26)are thin and have deep notches extending obliquely from the basal corners. The blade edges commonly have an obtuse angle although some variations have straight to slightly excurvate lateral margins. It is thought that the unnotched pentagonal form were preforms for the corner-notched variety (Justice). This point is diagnostic of the latter part of the middle woodland to late woodland periods. Lithic materials used were commonly Jasper and Hornfels. The distribution of the Jack's Reef includes New England and westward and have been recovered from the Albee Mound in Indiana and are associated with the Intrusive Mound Culture in Ohio.
Pictured below are a few Jack's Reef points from coastal Connecticut.
Pictured below are a few Jack's Reef points from coastal Connecticut.
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