Anyone looking for LEGAL spots in the Dayton area:
On facebook find Thrashing Trails. It is still there but it is a small family operation. You have to call ahead to tell him that you are coming so he can make sure he is there to let you in. It has been described as a "small Haspin." It has a few decent climbs but it is mostly trails including some creek runs. They can be difficult if it has rained. Some of the trails are narrow so if you are unfamilar with such 'wheeling: tight turns around trees can make it difficult for larger vehicles and custom pin-stripping can occur. Highly modified rigs may not find a lot here but for most it is a decent local place. No overnight
"3084 W Enon Rd
Xenia, Ohio 45385"
Another FB site is RS Big Maple Farms. This is near Oxford and has gone be several other names including White Cross. Another smaller place . Lots of mud....perimeter trails of varying difficulty....some decent climbs. Highly modified rigs may not find a lot here but for most it is a decent local place.
"7196 morning sun rd Oxford Ohio 45056
208 acre farm for riding any kind of atv jeep fishing pond camping
Not exactly local but the biggest park in this area: Haspin Acres in Indiana.
Lots of themed events including mini concerts and mud bogs in addition to trails and camping. Several decent hills, some rocks, and a lot of trails. Something here for everybody including the fairly heavily modified rigs. Be sure you know how deep something is before you go into it. Some of the mud holes ( which can be avoided) are much deeper then their length would suggest. There have been comments about loud and rowdy behavior including excessive drinking on the trails and, unfortunately, theft issues. These issues, especially the rowdiness, seems to change depending on what if any event might be occurring that weekend. If the event looks like it would attract a group you would not want to be around chances are that is the group who will be there that weekend.
21208 Laurel Rd
This isn't local but it is my favorite regional park:
There are many others in the region...some I know and some I don't. There are several in Kentucky as well as Eastern Ohio. Unfortunately some of these places come and go so often that I do not keep up.
A word for those new to wheeling in Ohio specifically and the Great Lakes region in general:
That word is MUD.
Get used to it. I am not talking about down South mud bogging with 5' deep mud and tractor tires but if it has rained there is going to be some mud. It can take several days for the mud to dry in heavily wooded areas. Often there is a thin coating off it on most of the ground. There is not much high-traction rock (mis-named "slick rock") here like there is out West, either: everything here is going to be slick. Not just in name but in fact. All of the time. All-terrain tires are nice if all of your terrain means paved roads, parking lots, and winter on-road driving. Off-road here means mud terrains of some sort unless you want to get stuck more often than you would with more aggressive tires.
Hopefully some of the Eastern Ohio folks or others post up some current wheeling info for places like Wellsville and Slade. Have fun.