Map of Colville Tribes land in Pasco, Washington The Pasco casino will be built on a tribal-owned land northeast of King City in Pasco, WA. The Colville Tribes currently own and operate three casinos in the state: 12 Tribes Omak Casino Hotel in Omak, 12 Tribes Lake Chelan Casino in Manson and 12 Tribes Coulee Dam Casino in Coulee Dam. The Colville Tribes purchased the 184 acres in May 2019 for $10.8 million. These are ancestral lands of the Palus, one of the twelve Tribes in the Confederated Tribes of the Colville Reservation. It is east of Highway 395 just north of the King City Truck Stop. The land is 184 acres of farmland northeast of the King City Truck Stop in Pasco, Washington. There is speculation that a land purchase last year in Franklin County could develop into a future tribal casino.