Swallow Falls State Park
Before you contact me to let me know that this place is in Maryland, I already know. I have added it here because it is such a cool place and so close to the border.
If you're visiting the falls in Terra Alta, just take WV 39 east out of town to Oakland, MD. Turn left on 3rd St. and then left on Center St. to the end where it intersects with Liberty. Turn right on Liberty St./Herrington Manor Rd. Follow for 5.8 miles and bear right on Swallow Falls Rd. Go left on Maple Glade Rd. and follow to parking and trailhead.
There are three falls here: Swallow Falls, Muddy Creek Falls, and Tolliver Falls. All are worth the hike. At swallow falls, you'll want to meander down river a bit and find your way to the shore line to get a good photo composition.. There are several good perches there. Muddy Creek has a set of stairs to take you down to waterlevel and onto the trail