What boats might have existed in the Yukon delta?

What boats could have been used around the Yukon River delta 50,000 years ago?

Hollowed-log boats are suggested tentatively after the date is corrected from an initial reading of 5,000 years.

The first response misreads the question as 5,000 years ago and proposes hollowed logs. After recognising the requested 50,000-year timespan, it tentatively gives much the same answer. This is set against the much shorter period usually discussed in naval warfare. No archaeological example from the Yukon delta is supplied, leaving the suggestion conjectural.