A piste's the name given to a marked ski run or path down a mountain for snow skiing, snowboarding, or other mountain sports. The term's most often used in Europe; in North America, a piste would more often be referred to as a trail, a slope, or a groomed run. Piste's French for trail or track. Piste maintenance Pistes are usually maintained by a ski resort where guests may travel from one piste to another via a mechanical ski lift system. Pistes are usually maintained using tracked vehicles… (More on Piste)