There's King's Mountain State Park in York, SC. Water & 20/30 electric.
While you're there you might want to check out Cowpens National Battlefield in Cowpens, SC., just south of Gaffney. From the NPS site:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> The Only Double Envelopment in the American Revolution
"...our success was complete..."¯
Daniel Morgan to Nathanael Greene, January 19, 1781
A pasturing area at the time of the battle, this Revolutionary War site commemorates the place where Daniel Morgan and his army turned the flanks of Banastre Tarleton's British army. This classic military tactic, known as a double envelopment, was one of only a few in history. </div></BLOCKQUOTE>
Pine Cone Campground is located in Gaffney, SC., if you want full hook-ups. Water pressure is on the low side. If they have mowed the grass, emptied the dumpster, painted the place, and put the door back up on the Rec Room it's not a a bad place.
It's not like there are a lot of choices around there.