The final winner of the Tour de France will be determined by an Individual Time Trial (ITT). Whereas most Tour stages are contested by teams, with various roles and strategies within the teams, the Individual Time Trial is just the bicyclist against the clock - no drafting, no helping, just the individual and the unforgiving distance. The ITT is almost always held on a flat course, and so there are two types of specialists in the peleton - there are climbers and there are ITT specialists, and usually they are two distinct groups.
It is rare
On September 25, here in Pittsburgh, there will be a mountain individual time trial, combining both worlds. The 2010 Tour the Montour includes a new King of the Mountain event. Those competing in the Tour the Montour KOM event will be timed individually up a 7/10ths of a mile long hill (Hassam Rd - closed to traffic, not part of the trail). At an average of an 8% grade, the man and woman with the fastest times will truly be the "King" and "Queen" of the Mountain and will receive a special bicycling jersey for their effort.
Here's a link to the registration form.