First off, I am inclined to believe that some type of large hominid exists in N. America based on a preponderance of tracks which have withstood repeated scientific scrutiny and corroborated and reliable testimony from many individuals with impeccable integrity. However, I would not lend much, if any, credibility to this story without some other corroborating evidence. The details of the story are not only awfully incredible and totally unsubstantiated by physical evidence, they are a "humanistic" departure from the norm, which suggests an element of human invention. If the implications of this account were true, it would indeed increase substantially the chance that someone, somewhere, would have discovered some unusual and unexplained rock piles that were not washed away so easily in a flood, or that bigfoot remains would have at some time in the past been deposited somewhere noticeable by floodwaters if floodplain burial is a habit of these creatures. There are too many suspicious and precarious threads to this story to give it credence without some solid physical evidence.