https://www.bikereg.com/michaux-endurance-series-curse-of-dark-hollow

The Curse of Dark Hollow is the second stop in the race series. This race begins and finishes on Big Flat off of Shippensburg Road. This race started in 1996 and has continued to push the limits of mountain biking in the forest. Rich Winkelmann, of the race directors said, "These events aren't about pomp and circumstance. This is a blood sport. Its really about the technical challenge that Michaux presents to the riders, which we feel is the very heart of mountain biking. The gnarlier and more mysterious, the better! Is there another way to do it?" This also has 10, 20 and 30 mile single courses.