UniverTrail d'Arêches is a mountain trail event held in Beaufort, Savoie, France, in the Auvergne-Rhône-Alpes region. It takes place in late August near the Arêches-Beaufort resort, offering two race distances: 16 km and 27 km. Both courses are steep for their length, featuring 1,200 metres of ascent on the shorter route and 2,000 metres on the longer one, presenting a true alpine trail challenge distinct from flat running races.
The event is part of the UniverTrail series and emphasizes an eco-responsible approach alongside the athletic competition. Participants select either the 16 km trail or the 27 km route, which is noted as the more popular choice. The environment is high-altitude, natural, and mountainous, aligning with the race's branding and the alpine terrain of Arêches-Beaufort.