A great ride, but very hot climbing up Rockpile Road. Rode with Hilary and the rest of the Trek tour group until we reached Rockpile Road. I then made my way on my own until almost the gate at the end of the road. I turned back at the last 0.5 mi where the road dipped down into a steep ravine. No use getting there only to haul myself a 12 percent incline in that heat. A lot of climbing, over 4,000 feet today. Passed a couple of cyclists on the way down who were climbing very quickly in the opposite direction where I had just come from. About a half hour later, I ran into them at the visitor information centre at the bottom of the hill. I can't be certain, but I'm pretty certain one of them was Levi Leipheimer. Apparently he lives in Somona valley and uses Rockpile Road as a training hill. Clearly he isn't doing the Tour de France this year....