All campsites are available for reservation on a four-month rolling basis. For example, on January 1 individual sites are available for reservation through May 1. You can book a maximum of 13 days beyond the last date of the reservation window. For more information please contact our Reservation Call Center at 800-322-3770 between 8:00 a.m. and 5:00 p.m. (Mountain Time) Monday through Friday. The call center is closed Thanksgiving, Christmas, and New Year’s Day.