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- Lab number
- Beta-59064
- Material dated
- Charcoal
- Type of date
- Archaeological
- Locality
- Contra Costa
- Date uploaded
- January 15, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Measured Age
- 1980 ± 110
- Context
- NO/E17, carbonized marsh plant, 30-40 cmbs
- Additional information
- Radiometric