Arizona: Desert Diamond Casinos set to reopen June 5 Maria Arey, KGUN-9 (Tucson) · May 26, 2020 at 1:26 am The Tohono O’odham Gaming Enterprise announced Monday that gaming operations will resume at all four Desert Diamond Casinos June 5 at 1 p.m. According to a press release from Tohono O’odham Gaming Enterprise, all four of the Desert Diamond Casinos near Tucson, Sahuarita, Glendale, and Ajo are implementing new changes to its health and sanitization measures to provide the best protection for guests, employees and the community. TOGE says deep cleaning of each location has already been in place during the closure of its operations. The facilities are also be organized to fit social distancing measures, including installing protective equipment such as plexiglass.