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- Lab number
- Beta-3286
- Material dated
- Charcoal
- Type of date
- Archaeological
- Locality
- Gunnison
- Date uploaded
- January 15, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Measured Age
- 2690 ± 80
- Context
- Charcoal from Feature 23, the last feature exposed in the X1-X17 block, was first observed at a depth of ca. 46 cm below the 1981 ground surface. It appeared as a dark charcoal stain which lay stratigraphically above the N part of F7, but below the S edge of F22. Max horizontal dimension of ca. 60 cm. In profile, the stain was in a relatively steep-sided, unlined basin with charcoal and FCR. The date is reversed with respect to the date from Feature 22, a feature that lay below F23. Jones, 1986a, gives the date as 2771 +/- 90. This is the author's conversion from the Libby half life to the Cambridge half life. For the sake of consistency within the database, the reader should use the Libby half life, as have I.