Kary Nichols, Colville Tribal Federal Corporation Chief Executive Officer commented on this renaming and said: “It was important for us to incorporate the location into each property’s name for consistency and tourism purposes”. 12 Tribes Omak Casino Hotel, formerly known as 12 Tribes Resort Casino and 12 Tribes Lake Chelan Casino, formerly known as 12 Tribes Mill Bay Casino, will now be rebranded based on their locations. The tribe is still finalizing details to launch sports betting after receiving federal approval last month for its three casinos.ġ2 Tribes Colville Casinos announced Wednesday new names for their properties in Omak and Manson. The new name changes come as one of the final stages in the year-long refresh project. 12 Tribes Resort Casino and 12 Tribes Mill Bay Casino are renamed after their locations in Omak and Manson to 12 Tribes Omak Casino Hotel and 12 Tribes Lake Chelan Casino, respectively.