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- Lab number
- I-503
- Material dated
- charcoal
- Type of date
- Archaeological
- Locality
- left bank of Columbia River, ca. 7 miles east of the mouth of John Day River, Gilliam County, John Day Basin, Oregon
- Submitter
- L.S. Cressman
- Date uploaded
- January 17, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Measured Age
- 6150 ± 250
- Normalized Age
- 6150 ± 250
- δ13C (per mil)
- -25.0
- Significance
- Middle period; période moyenne
- Context
- lowest major occupation level, just above three side-notched projectile points of Great Basin affiliation
- Additional information
- Radiometric