2017 CGY will start and finish in West Yellowstone, Montana with 6 days of riding to include a layover day in Driggs, Idaho. Day 2 will end in Driggs, Idaho in time for viewing the Total Solar Eclipse, August 21.  CGY 2017 mileage is approximately 350 miles.  You can add layover day miles and we will be providing a few other ways to add mileage to your week!