I've been reviewing the PCT elevation profiles on Halfmile's page, and while I'm sure there's small ups and downs they can't show, I'm looking for the gruelling sections. By this I mean the 1000' per mile stuff. For instance climbing out of KM you do about 4000 up in a 17 mile stretch, so there's elevation, but not steepness. How do the mountain sections stand up against for instance places like the Adirondacks, or the Whites? I imagine the pitch and footing are different, I don't think the Sierras got glaciated, so the erosion processes are different, but the elevation profiles don't look similar.