12 Tribes Coulee Dam Casino, operated by the Confederated Tribes of the Colville Reservation, opened January 12, 2004, and is uniquely positioned below the spillway of the Grand Coulee Dam. The 5,000-square-foot gaming floor features over 200 state-of-the-art slot machines. Operating hours are 10 am to 3 am on weekdays and 24 hours on weekends, with live entertainment and weekend performances. Spillway Bar & Grill provides dining and drinks. Summer laser light shows on the dam's 1-mile-wide spillway offer distinctive entertainment, making the location architecturally and visually distinctive among regional casinos.
