The groundbreaking ceremony was on October 18, 2021, after Governor Doug Ducey signed Arizona’s Indian gaming compacts and allowed the Gila River Indian Community to establish a new casino. Santan Mountain bills itself as the largest casino sportsbook in the state. The tribe promises the gambling venue will offer an elevated casino experience with its 813 slot machines, table games, and a fine dining area. The Gila River Indian Community will open its new Santan Mountain Casino south of Chandler, Arizona, on June 30.