Headed up Hamilton from the east side yesterday, starting out from Patterson as part of the Canyon Classic charity ride. by the time I got onto Hamilton my garmin was reading 110 degrees. I made it up to mile marker 3 and then turned back, knowing I wouldn't have enough strength to make it back to Patterson if I kept going. On the way back down through del puerto canyon the road temp hit 120. I would have SAGed back in, but all the vehicles were full with riders that had bonked further up. I heard they medevaced one rider who crashed going down hamilton, and an ambulance took another rider who collapsed. Lesson learned - I'll do hills, or I'll do heat, I won't do hills in the heat!