Registering with BookYourSite enables us to re-use your contact information each time you reserve a site with our booking system. Information like your address, membership information (eg. CAA/AAA), and your preferences for park amenities can be saved. In addition, after registering with BookYourSite you have the option of receiving promotional information from the parks about upcoming specials and events.
From their website: "Members of the general public are not allowed to make reservations in the RV Park. We would invite anyone who is interested in staying at our RV Park to explore the privileges of being a member at East Canyon Resort."