Years back we used the NCT as a prep for the scout troops backpacking trip to Alaska. We used the trail on the Allegheny National Forest. I don't know the length of your trip, but look at topo maps before you plan it out. "Your mileage may vary" depending on terrain.
https://northcountrytrail.org/trail/ Blacksmith here is a link to the North country trail with lots of info In Ohio I read it is called the Buckeye Trail. It also is broken down into state trail segments. There are downloadable maps here also. The portion of the trail that passes through the Allegheny NF in Pa is a beautiful trail. Hope this helps. Just Google North Country Trail for good info.