Save The Event For Later Summit Mt. Challenge #4, PENNSYLVANIA GULCH GRIND, presented by Peak-a-Boo Toys Breckenridge, CO, Wed Jul 29, 2015 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: 189 Boreas Pass Rd., Breckenridge, CO 80424 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 .