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Trail running is a sport which consists of running and hiking over trails. It differs from road running and track running in that generally takes place on hiking trails, often in mountainous terrain, where there can be much larger ascends and descends. It is difficult to definitively distinguish trail running from cross country running. In general, however, cross country is an IAAF governed...  MORE

Trail running is a sport which consists of running and hiking over trails. It differs from road running and track running in that generally takes place on hiking trails, often in mountainous terrain, where there can be much larger ascends and descends. It is difficult to definitively distinguish trail running from cross country running. In general, however, cross country is an IAAF governed discipline that is typically raced over shorter distances, whereas trail running is loosely governed, and run over longer routes. LESS