Pin oak is a very common tree planted throughout Lincoln, red oak is a distant second, and very few burr oaks - but the latter are common throughout NE prairies and around the Platte and Missouri river basins. Pin Oaks grow very tall and straight and have the smaller round acorns and I think they smell like fresh dog crap when split. It's inferior to red oak as firewood as it can get punky/powdery, but still a superior wood and in my experience very easy to split straight grained with a hand maul. When I get a knotty piece, buck it into 4" rounds and split chunks for charcoal or smoking wood or head to the hydraulic splitter and take out some frustration.