COULEE DAM — An employee tested positive for COVID-19. 12 Tribes Coulee Dam Casino will close for 3-10 days beginning June 18, 2020 at 7PM. 12 Tribes Resort Casino in Omak and 12 Tribes Mill Bay Casino in Manson will remain open. 

“We are working to do an extensive sanitizing of 12 Tribes Coulee Dam Casino and will remain closed at this time until further notice,” said Chief Executive Officer Kary Nichols. “We thank our communities for their support and understanding.” 

The Confederated Tribes of the Colville Reservation and 12 Tribes Colville Casinos are working closely and quickly with tribal and state health officials. 

“Our hearts are with those who are affected by COVID-19,” said Nichols. 

Updates will be made available on 12 Tribes Colville Casino’s website at

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