That looks more like something in the red oak family. Based on the smooth bark and lots of knots/lateral branches I’d venture to guess pin oak, a common landscape tree.
Its a crap shoot sometime as to what you'll find once you slice it open. Had a big black locust log that had a huge check in the middle and tried to slice for optimal yield. Milled some pin oak and it warped like a banana even though it was stored in a basement for slow drying. Sealing the ends helps with checking. Anchorseal or old latex paint are the most common.
Thought this was ash at first but then I saw the black specs in the sapwood that I thought was indicative of some other species that escapes me. Maple? Walnut?
Found a nice HL log to make up for it. Big day today, moving everything I’ve milled so far to my father in laws shed for drying!
Too bad about the walnut. You never know until you slice it open. The HL made some nice stock. How much do you have to move?
I have a few thoughts, but first: What does it smell like? If you buck a piece and split it, how does it split and what does the grain look like?
I'm guessing you are going to say it was maple? That log was a potential one for milling so I didn't split any.
Roadside marketplace listing. I thought silver maple at first but I'm not sure on this one. Weird how the one log has a big heartwood section and the rest are much smaller. Two different trees?