Stroll on over to Upstate Bouldering to get a new PDF guide for bouldering at Granite City, which is near Cashiers, NC.
I've never been there myself, but look forward to checking it out sometime this summer. If I'm not mistaken, there are a lot of great waterfalls in the area as well, so you can make a pretty killer summer combo trip of bouldering and creek swimming.
Here's a video that shows the rock quality for those who have never been before and are considering the trip.
And here's a Google Map from Asheville (disclaimer: I haven't used these directions myself! Also check out the Upstate Bouldering site for more directions):
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Thanks for the great topo guide, Brad.
Update: Brad dropped some rope climbing beta into the comments:
There are also quiet a few roped routes at Granite City too. There are 2 ways to the mini-gorge in the very back...through some of the crevasses near the Drunk Tank boulder or to the right at the very end of the Back Alley area. The gorge has about 30-40 ft walls with mainly tougher top rope routes (bring a lot of slings/webbing to set anchors on trees at the top). There is also at least one trad route on a pillar in the middle of the crevasse maze, with a set on anchors on the top of the pillar. Bring your sense of adventure and your eye for developing and I'm sure there's a boulder or roped route for everybody.