Ride to WV
I was also going to recommend Senaca Rocks. Before moving to Texas in 1999, I lived in Petersburg, WV and miss the riding in that part of the world. From Senaca, take 33 south and east to 220, north on 220 to the point it makes a hard right to cross the South Branch of the Potomac--take a left (really more straight) to Eagle Rock and Smoke Hole. We rode down there one warm winter Sunday and stoped in wonder to watch and eagle soar higher and higher up the canyon wall. You may just want to go to the end of the pavement, but it is a beautiful side trip. Back to 220 toward Petersburg, just as you come into Peterburg and before you come to the road to the airport to the left and cross the river, take the paved road to the right. Follow it to a trout hatchery were you may walk around as you wish. Just beyond the hatchery (about 100 yards) at the end of the pavement is a beautiful secluded waterfall; follow the path at the point the road makes a right to cross the stream. The road up the mountain past the waterfall has beautiful views but is dirt. From Petersburg you could go up to Dolly Sods and Bear Rocks--inquire locally or get a detailed map. The road through Dolly Sods is dirt, but a pretty good dirt road.
From Petersburg any route up into Western Maryland is a great one. From their I recommend going through Somerset County Pennsylvania--covered bridges (find a brochure or a Delorme), Amish with small country stores, etc. Mt. Davis, Pa's high point, is in southwestern Somerset County and has a tower to climb and a small park. From there you could swing by Ohiopyle to see the falls. Great country, try the back roads. Meyersdale Viaduct (former Western Maryland RR steel trestle across a broad valley, now a bike trail) on the edge of Meyersdale is worth a visit. Try the back roads, stop at Amish stores for bake goods. Great country, not packed with tourists (except maybe for Ohiopyle). We'll be visiting Somerset County in August, but will flying up and go there in a rental cage.
Have a great trip.