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- Lab number
- ISGS-829
- Material dated
- freshwater mussel shell; coquille de mollusque d'eau douce
- Locality
- Navigation Pool 16, Rock Island County, Illinois
- Map sheet
- a
- Submitter
- M.L. Barnhardt
- Normalized Age
- 5680 ± 75
- Significance
- Middle Archaic; Archaïque moyen
- Context
- midden with non-diagnostic artifacts on the crest of a beach ridge about 20 m from the Mississippi River