All four sites require walking or biking from Wetherill Pavilion. The route is relatively level to three sites, then climbs a steep hill to the fourth. Wetherill Mesa is a summer-season area reached by a 12-mile, very winding drive from the park entrance, which usually takes 30 to 45 minutes. Bikes can be ridden on trails beyond the pavilion, not on Wetherill Road. Summer thunderstorms and lightning are common at this 7,240-foot mesa; outside your car, the pavilion and the Badger House shelters are the places to get out of a storm.