It's pretty much a no brainer that the Rocky Mount

It's pretty much a no brainer that the Rocky Mountain High water line will be found at the world's largest casino in Oklahoma owned by the neighboring Indian family the Chickasaw Nation of Oklahoma.

WinStar World Casino and Resort is a hotel and casino located near the Oklahoma–Texas state line, 1 mile (1.6 km) north of the Red River, at Exit 1 off Interstate 35 and Winstar Boulevard in Thackerville, Oklahoma. The casino opened as the WinStar Casino in 2004, and was expanded (with a 395-room hotel tower) and renamed the WinStar World Casino in 2009, with its 519,000 square feet (48,200 m2) of casino floor making it the largest casino in the state of Oklahoma. In August 2013, WinStar Resorts completed a major expansion project, which added a new 1000-room second hotel tower that was divided into two phases; this also added a new casino that is attached to the tower. As a result of the completion of this expansion, the casino overtook Foxwoods Resort Casino to become the largest casino in the United States based on gaming floor space. WinStar has over 7,400 electronic games, 46 table poker rooms, 76 table games, Racer's off-track betting, High Limit Room, keno, and bingo.