La Plagne longest pistes. Riders looking for long, thigh-burning descents are spoiled for choice in La Plagne. Unlike many other smaller, lower resorts, La Plagne has a multitude of unbroken pistes to test your stamina while giving massive vertical drops. With 225km of pistes from 1250m to around 3000m, La Plagne has some of the most varied terrain in the Alps. And remember, that’s without the idea of combination pistes to make even longer routes and an even bigger vertical drop.