The Trail des Passerelles du Monteynard takes place in early July near Treffort in Isère, situated between Matheysine and Trièves, with Monteynard lake as its focal point. This event offers a variety of trail-running options, not just a single race. The program features nine medium-mountain routes ranging from approximately 13 km to 62 km, alongside a hiking option and races for children. The courses are designed for accessibility and moderate technicality, though the longer distances require significant mountain running experience; the primary race extends over 62 km with close to 3,000 m of elevation gain.
The routes traverse ridges, slopes, and paths surrounding the lake, offering views of the water and adjacent mountain ranges. A distinctive element, reflected in the event's name, involves runners crossing two footbridges, contributing to a unique Monteynard character. The longest course begins in La Mure, the main town of the Matheysin plateau, then proceeds along the slopes of Sénépi near sunrise, passing La Pierre Plantée before continuing through local natural and cultural sites. Route adjustments may occur before race day, leading to minor variations in distances and elevation, but the event's fundamental concept remains consistent: accessible mountain trail running set against a striking lake backdrop.