From the Promoter:
Kisatchie Gravel Challenge is a gravel cycling race located in the beautiful Kisatche National Forest offering 75, 40, and 12-mile distance options. The race will take you through the picturesque piney woods of central Louisiana. This is a great race for the experienced rider as well as the beginner wanting to do their first gravel ride.
37-mile ride https://www.strava.com/routes/16762158
75-mile ride https://www.strava.com/routes/16761954