The source goes no further than hardwood and softwood here, which is a starting point rather than a specification. The species guides take the trees one at a time - what each is cut for, how it is graded, and where the line between pulpwood and sawtimber falls.
It is the only facility the Michigan sources list in Charlevoix County, which is worth knowing before you plan a haul: the next gate is in another county. The Charlevoix County section of the state page shows it standing alone, and all 302 Michigan listings cover 73 counties.
Anybody searching for a sawmill near me needs more than one gate. If this one will not take your wood, the nearest other listings are Silver Leaf Sawmill in Elmira, 10 miles away, Bunker and Sons Wood Pallets in Vanderbilt, 12 miles away and Yoder Family Lumber in East Jordan, 13 miles away. Distances are straight lines between the coordinates the sources published - not road miles, and not a statement that anybody is buying.
None of this says whether the gate is open or what the 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, and sealed bidding puts one tract in front of several buyers at once instead of taking the first number offered.