Gotta have black walnut somewhere, it’s…it’s just the best.
I live in Ohio (Columbus, in fact, home of the Buckeyes), and I rarely see a buckeye tree off OSU campus, let alone work with it. But there’s walnut EVERYWHERE here.
There was a guy we used for custom cuts in Evergreen, but I can’t find his info. I did find this in Boulder though, might be worth a shot. http://oldetymelumber.com/
Yes, this primarily concerns unprocessed wood. I was unable to find a comprehensive listing, it is up to the individuals to check with their state about restricted woods.