This is probably the toughest day of the entire Route 40 cross-country trek. The first 60 miles cover a rather brutal ascent of more than 4,000 feet in elevation. Once you reach the summit of Berthoud Pass (the highest point on all of Route 40), you will rapidly descent about 4,000 feet in about 20 miles. If you follow this itinerary, you do so at your own risk. Failure to exercise good judgment can result in traffic violation citations, injury and even death. If in doubt, please consult with state and local law enforcement agencies.by fbrusca