Welcome to winter madness on Mountt Diablo. Enjoy Mt Diablo under cool temperatures "when hell freezes over". There is no question that Mt Diablo represents the toughest challenge for any trail runner during the summer. Hopefully it snows. And, like all of our events, when you finish, a hot meal will be prepared by PCTR chef and Food network star, Chef Yaku Moton-Spruill.