Cerro Blanco 1 is one of several Late Archaic sites investigated by Jonathan Haas, Winifred Creamer and their team in the Pativilca and Fortaleza Valleys in the Norte Chico Region of north-central coastal Peru (Haas et al. 2013). This site had evidence of maize pollen recovered from soil samples, one of which had an associated radiocarbon date.
| ID | Other ID | Type | Subtype | Uncal BP (years) | ± 1 σ (years) | Median cal BP (years) | Lower cal BP (years) | Upper cal BP (years) | δ13C | Contaminated? |
|---|---|---|---|---|---|---|---|---|---|---|
| 683 | ISGS-5716 | MicroSample | pollen | 3600 | 70 | 3850 | 4082 | 3642 | No |