La Moursoise is a short night trail race in Mours-Saint-Eusèbe, a commune in the Drôme area of southeastern France. Runners cover about 9 kilometers, with listings describing the distance as between 8 and 9 kilometers. The race starts at 17:30, so the field heads out around dusk or after dark depending on winter light.
The start is at the Salle des fêtes in Mours-Saint-Eusèbe, which gives the event a local, village-race feel rather than a big-city setup. The race was already on its third edition in 2019, so it is a relatively young local trail. Some listings also call it the Foulée Moursoise, but the night-trail format and compact 9 km distance are the clearest identifiers.