Save This Event For Later Summit Mt. Challenge #3, KEYSTONE UPHILL/DOWNHILL DOUBLE TIME TRIAL, presented by Keystone Resort Keystone, CO, Wed Jul 13, 2016 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: Hunky Dory Court, Keystone, CO 80435 Presented by Maverick Sports Promotions This is a past event. If you wish to see the details for this past event click "Continue" below. If you are looking for a current event, please search the event calendar .