War Bonnet

War Bonnet Raceway Park was a purpose built undulating road course outside Mannford, Oklahoma that operated for little more than three years.

War Bonnet Raceway Park was a purpose built undulating road course outside Mannford, Oklahoma that operated for little more than three years. It opened in 1966 as a 1.1-mile road course but was extended a year later to hold a round of the North American Formula 5000 Championship. A Trans-Am race was added in 1968 and SCCA sports car events were held into the new decade before the circuit closed for an unusual reason. The creation of the Keystone Lake reservoir as flood control forced the town of Mannford to be relocated to higher ground around the circuit.