Cold air at a dark trailhead before six in the morning, and the only question left is whether you can. Everything you told yourself during training is irrelevant now. Something else takes over out there, a version of you that does not exist at any other hour of your life.
The long course climbs and drops through technical backcountry singletrack above Pine Valley, pine shade and granite and long exposed ridgelines where the view costs you something to earn. SoCal ultrarunners talk about this one as a real race, the kind you train months for and retell for years afterward. The shorter distance is the door in for anyone not ready to spend a whole day on a mountain.
Pine Creek Road Trailhead in the Cleveland National Forest, briefing before dawn, gun shortly after. Run it, or go stand at the finish and watch what people look like the moment they find out.