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- Lab number
- WIS-200
- Material dated
- Charcoal
- Type of date
- Archaeological
- Locality
- Portage
- Submitter
- Hurley
- Date uploaded
- January 18, 2024
- Updater
- Wyoming Team
- Date updated
- December 31, 2020
- Measured Age
- 1140 ± 50
- Significance
- Late Woodland/effigy Mound
- Context
- Feature 13, Mound L, bird effigy
- Additional information
- Radiometric