The Cimarron Turnpike is a toll road in north-central Oklahoma. The route travels 67 miles (108 km), from an interchange with Interstate 35 (I-35) north of Perry, to Westport, just west of Tulsa. The route also consists of a 7.2-mile (11.6 km) spur which runs from the mainline southwest to an interchange with U.S. Route 177 (US-177) north of Stillwater. The entirety of the Cimarron Turnpike is concurrent with US-412 except for the Stillwater spur. At either end of the Turnpike, US-412 begins (or ends, depending on direction) a concurrency with US-64.