Parson's Mtn is closed right now for the season. should open back up in march. Its just forest service land. Only reason ive been there is cause it is closer than anywhere else. Clemson is like a geographical oddity, 2 hours from every major riding park/track. haha. But Parson's is fun just short. I know a friend and I went and rode there, and did 2 laps on the trail in no time, granted that was on two race quads with two people who play cat and mouse trying to see who's faster but still not a bad trail for a quick ride.
May try and check out turkey creek mx if they are open. I'd like to go ride at iron city mx off 85 but there isn't an open practice schedule listed online.