You probably have more firsthand knowledge than me, but my understanding about Skull Cave is that there are geological depositions there that are about as old as the original Bering Strait hypothesis, about 10,000 yrs. before present. From what I’ve heard, it seems to resemble mass depositions of prehistoric creatures in other areas that seem to have been caused by some type of catastrophic event.
Duh, maybe I should have stated that there seem to be many human remains of comparable age as the depositions. To the best of my knowledge, there has never been a full examination of the cave.