Aspen is named on more of these Bayfield County records than anything else, and species decides more of what a load is worth than the gate it goes through. There is a guide here for white oak, each one covering grade, form, the defects that cost money and what the wood is normally cut for. The reference list adds a row on quaking aspen and hard maple - what buyers take each for, and the catch, though the source never narrows maple to a single species.
These 3 listings are 1% of everything the Wisconsin sources publish, concentrated in one county. A mill does not care which line your ground sits behind, so read outward: all 211 Wisconsin listings cover 63 counties, 34 of which carry enough listings for a page of their own.
None of this says whether a gate in Bayfield County is open or what a load would fetch - no agency document records that. A price comes out of a sale run properly: the landowner's guide to selling timber takes the steps in the order they happen, sealed bidding puts one tract in front of several buyers at once instead of taking the first number offered, and a consulting forester runs the whole thing for you if you would rather not.