I drank from the spring Brad mentions on May 19th (27th wedding anniversary…..you learn to remember those or else!) About 100 yards south of the big intersection in Shining Rock Gap on the east (right going towards Cold Mt.) side. I've never seen it dry. The east side trail from Ivestor Gap to Flower Gap SUCKS take the west side trail all the way to Shining Rock Gap or just bushwhack straight up and over Grassy, though must admit Flower Gap is pretty and you'll miss it taking the west side route!
There's a piped spring on the shoulder of Cold as you're slabbing the slope just before gaining the summit ridge. This is the spring Jamie mentions. Some nice (but small) camping spots right where you make the ridge. Nice spots out by Stairs Mt before you drop down to the Causeway (pretty Red Spruce……. couldn't run the train out that far in the 20'3 30's to get just a few more acres so that nice woods survived the slaughter) or good spots towards Beech Gap and Dog Loser closer to Shining Rock but it can get crowded around Shining Rock Gap