The Trail des Violettes is a 10 km trail race in Val-de-Virieu, beginning at the Virieu stadium. It takes place in October, coinciding with Octobre Rose, France's national breast cancer awareness month.
The route follows natural paths and singletrack trails, avoiding road sections. The local football club, FC2V, organizes the race. Proceeds from the event are donated to breast cancer charities, giving this local trail run a distinct purpose.