May: Ranger-led cliff dwelling tours open for the season (May 4 in 2026), and Wetherill Mesa opens later in May. Spring temperatures are ideal on the mesa tops.
Permits and reservations
No reservation is needed to enter the park, but a ranger-led tour reservation is required to go inside a cliff dwelling.
Cliff dwelling tours: Ranger-guided tours (Cliff Palace, Balcony House, Long House) release 14 days ahead at 8 a.m. MDT and fill up early. Cancellations can be booked online up to 2 hours before a tour.