Google Earth Flyover showing the route of the 56-mile bike course of the Ironman Boulder 70.3 triathlon.
The course was plotted in Google Earth and then the tour played back at a flyover speed of 200 mph and altitude of 120 ft.
Mile markers (blue in first half, green in second) and turnaround points are approximations.
Route based on course map at Ironman.com.
See also Boulder 70.3 run course.