Trail des 2 Monts - Fleurines is a trail-running and walking event held in Fleurines, a village in the Oise region north of Paris. It takes place in spring, guiding participants along paths and forest trails instead of roads. Three distances are offered: 30 km, 22 km, and 11 km.
The courses traverse the Halatte forest and the trails surrounding the Monts Calipet, centering the race on woodland running near the village. The 30 km route covers approximately 500 meters of elevation gain, providing a genuine trail challenge without becoming a mountain race. This is the event's third edition.