Took a picture of this trailer on one of my jobs last week! This next pic is the lower right log, that's an 18" ruler. THIS next pic is that top center log on the SMALL(top) END at 50ft. Again an 18" ruler. The whole load
Most of that dark wood is poplar, that longest one I beleive is sweetgum as a few others. And at least one or two oak logs. I didn't look to see really. I'm going to look back at the pic. Edit: looking at the pic. That longest one I am pretty sure is poplar aka yellow poplar or Liriodendron tuliperifera. That bottom right one looking at butts is redoak or some sort, that big center log I am pretty sure is sweetgum, the rest I think are poplar...maybe another sweetgum thrown in. I didn't really inspect it though in person so I am going by pics.