12 Tribes Colville Casinos reopened today May 19 ; 12 Tribes Resort Casino US, Omak, WA ,() ; Coulee Dam Casino Birch Street, Coulee. While other. 12 Tribes Colville Casinos has 3 casinos in Manson, Omak & Coulee Dam, WA. 12 Tribes Lake Chelan Casino · Page · Casino · () · [HOST] 12 Tribes Omak Casino Hotel located in Omak, WA is our newest property. The 12 Tribes Coulee Dam Casino is an Indian gaming casino owned by the Colville Confederated Tribes. Visit us today for table games, concerts & much more! 12 Tribes Colville Casino Resort. 12 Tribes Omak Casino Hotel, located in Omak, offers + machines, 8 table games, two lounges, two high-end restaurants, a 57, square foot casino floor and. Casino. Beautiful Hotel, Restaurants, Nightclubs, great gaming and more! [HOST] Highway 97, Omak, Washington colvillecasinos. [HOST] Highway 97; Omak, Washington Confederated Tribes of the Colville Reservation. . Featuring a 56, square foot gaming floor with + slots, table games, 2 restaurants. It built a new. The casino is located in Coulee Dam, Washington and opened. The Colville Tribe already operates three casinos in north-central Washington, which include Omak, Grand Coulee and Chelan. The Mill Bay Casino in Manson, Washington is owned by the Confederated Colville Tribe and is located on the northern shores of Lake Chelan.