Randonnée Des Terres Froides is a one-day cycling and walking randonnée based in Le Grand-Lemps, Isère, France. It is organized by Le Cyclo Loisir de la Bièvre and typically takes place on an October Saturday. Sign-up occurs in the late morning and early afternoon, with the event concluding at 18:00. This is a local cyclotourist day, not an elite road race; riders select a distance, depart from town, and navigate the route at their own pace.
The bike options differ by edition. Generally, the event provides middle-distance road routes ranging from approximately 50 to 90 km, with elevation gains from about 540 m to 1,287 m. Some listings also feature 60 and 80 km versions, alongside 8 and 12 km walking routes, indicating the day accommodates more than just road cyclists. One reported edition attracted 309 participants, suggesting a well-attended local gathering rather than a large mass-start event. Licensed adults pay a small entry fee, while young licensed participants can enter without charge. The Terres Froides name refers to the cold-lands region surrounding Le Grand-Lemps, not a city-center course.