Hi again, trying to pick up where I left off.
Going slow now - at oak #6, this is when I could start getting my trees mixed up.
This is a small oak tree, I'd say 20-something feet tall with pretty big leaves. I didn't find any acorns on the two trees I was looking at. I'll look around for others and see if I can find any.
This might be Blackjack Oak, Q. marilandica.
Note the spines on the tips of the leaves.
--For my notes: these trees are located down the back pasture, on the right of the path towards the back gate.