大盘位，大问题。
路线库
Karakoram的每条收录路线——距离、爬升、难度,以及包含所经爬坡的完整路线图。
1条路线
A 147.2 km point-to-point assault on the roof of the Karakoram, climbing 4,717 m of paved road into the world's high thin air.
