Yep, I'm quite sure my woodpile is 95 percent plus Red Oak. The interior wood is that unmistakable, consistent, dark reddish color, not just some of it browner or whatever like other Oaks. We also have a nice stand of White Oak on our property, and its bark is quite distinctive. No way I could mistake those two. I'm not saying my dry stuff is as tough as Hickory, only that it splits noticeably harder than fresh cut Red Oak.