Manson, Washington 98831
The 12 Tribes Colville Casinos include 12 Tribes Resort Casino in Omak, Mill Bay Casino and the Deep Water Amphitheater in Manson, and Coulee Dam Casino in Coulee Dam. All three Washington State casinos are owned and operated by the Confederated Tribes of the Colville Reservation. As casino operators, we believe in striving for respect, integrity and excellence in everything we do. While each destination is unique in its offerings, all three casinos in Washington share a common commitment to delivering outstanding guest experiences, unique gaming opportunities, unparalleled customer service and individual player recognition.