Flagstaff (Super Flag)
Breathtaking views of the Flatirons mark this iconic Boulder climb, where the pros battled it out for a stage win in the 2013 USA Pro Cycling Challenge. For the hardcore, the ’Super Flag’ version of this ride goes past the amphitheater up to the set of mailboxes at the top, at around 8,000 feet. It’s ’only’ another two miles, but the majority of it averages a more-than 10 percent gradient.
Region: Colorado
City: Boulder
Distance: 9.04 km
Elevation Gain: 665 m
Elevation Loss: 1 m
Difficulty: 607 (Moderate)
FIETS Index: 4.89 FIETS
Avg Grade: 7.36 %
Max cat climb: 1
Min elevation: 1682 m
Max elevation: 2346 m
Ride Category: Epic Climb