Turquoise Valley is the oldest continuously operated golf course in the state and will be the first to reach 100 years in 2008. Home of the 747 yard "Rattler!" The only Par 6 in Arizona, the Rattler is the Longest Golf Hole in the Grand Canyon State, probably the Longest Golf Hole in the Old West and according to a 2007 Forbes Traveler online magazine* story, tied for 5th Longest Golf Hole in the United States.