There is/was a site called offroadnorthamerica.com. Not sure if it exists anymore, as I can't get the link to open.
That site is down. From their facebook page:
"To make a long story short, our hosting company went belly up, got sold to another hosting company, and that company got dissolved shortly after. Tired of fighting to get the databases and domain names back, we are rebuilding the site from scratch. Unfortunately, while the host was playing its games we had a few problems too and lost all the backups, so we have the site structure but not the data."
There are TONS of trails around the Tar-Hollow state park area. I tried finding them myself but had no luck... I joined Ohio 4x4 and went on their novice ride and it blew my mind. We rode old fire roads and service roads from 50 years ago that havent been maintained in 30+ years so they are pretty rough. My 03 TJ on 31's with no lift did okay, I did most of the obstacles but I definitely passed on a couple. Like I said, this was the novice ride though so we only did the basic stuff. One particular obstacle called powerline hill was one I certainly passed on. Another guy tried going down in in a stock 02 TJ with 31's and very very nearly flipped his. We rode from 10am till about 4pm and went 26 miles (95% of which was off pavement).
I plan on going back down there sometime in the next couple months if you wanna join. PM me if you want more info