A 2013 report states that even discarding these and relying on the other 23 determinations on charcoal, sediment and shell "we reaffirm our original interpretation of a relatively short occupation of some 300 years centered around 11,775 years BP, with a range of 11,652 to 11,955 years BP at one standard deviation, or 11,504 to 12,096 years BP at two standard deviations.