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- Lab number
- Beta-42348
- Material dated
- Charcoal
- Type of date
- Archaeological
- Locality
- Rio Blanco
- Date uploaded
- January 15, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Measured Age
- 990 ± 90
- Context
- Charcoal from Feature 5 hearth, located in the smaller of the 2 rockshelters (Unit D). The hearth is in stratum 6. Sand and roof fall (Stratum 1) overlays a sandy soil mix (Stratum 2). The next lowest stratum, Stratum 3 is a mix of 4 other strata resulting from wind and waater action. Directly under Stratum is the most recent occupation of the shelter, Stratum 6. The hearth from which this sample is derived is from Stratum 6. Stratum 4 is a cultural leel whcih was partially interrupted by excavation assoc. with Strata 5 and 6. Stratum 4 is initiazlly assoc. with Hearth 8. Stratum 4 is underlaid by a sterile stratum, Stratum 9. Stratum 10, in contact with Stratum 4, is an ashy-tan cultural mix,partially distrubed by larer excavation. A large hearth area, Hearth 11 underlies much of Stratum 10 and has been dated. The dates for Hearths 8 and 11 are inverted. Stratum 14, the earliest occupation within the shelter has carbon-dense soil and a dated hearth, Hearth 15. (NOTE: I found the description of the strata nearly impossible to follow, even though profiles were available.)