A mountain bike race in the NM Endurance Series — expect the kind of sustained, grindy effort the "Endurance" name promises. Details are thin on the ground right now, so check back or confirm directly with the organizers before you show up.
Cloudcroft sits up in the Sacramento Mountains at around 9,000 feet, and the "Rim Roller" name hints at ridgeline terrain — high-desert pines, cool air, and probably some exposure with views to match. That elevation is no joke if you're coming up from the valley.