[tautog]

I used to keep two trout in a small pool right where water came from an under water pipe. Water came from a two foot deep pond but time under ground cooled it enough for the trout to survive in that one pool. They would hide during the day and come out at night when the temps dropped a few degrees. I also caught a brown once in Lake Takanassee in August that must have survived quite while. I guess they find a tiny spring seep and sit on it for the hot weather period.