If you look in West Virginia most of the National Parks (those run by the Department of Agriculture...not the National Park Service) have decent trails that you can ride with a $5 day permit. I've been to George Washington and Jefferson National Park...their OHV trails were pretty decent (beginner to intermediate).
http://www.fs.usda.gov/wps/portal/fs... pname=George
The Cove is close to GW&J park...but it's privately owned. This guys does events 6 or 8 times a year were you can ride the trails on his side of the mountain. You may wanna check this out too. I've been back to take a look but never during an 'event.'
http://www.covecampground.com/