I have 2 logs of an unknown species available. Pictures attached show what I know with the trees. One is before I cut them, the bark, and end grain of the trunk.
Dimensions (approximate)
Log 1 = 16 feet long, 16" diameter at base and 14" diameter at other end.
Log 2 = 15 feet long, 16" diameter at base and 14" diameter at other end.