I was burning a brushpile Saturday and decided to save one large log out of it for the pond. I dragged the log to the lip of the pond with the tractor and rolled it in. The log has already been charred pretty good from a previous burning of the brushpile, and it laid on the ground for about a year and a half. I have no idea what type of wood it is. Think this log will float, and should I try to weigh it down?

Thanks,
Eric