State Highway 66, often referred to as SH-66, is a significant roadway in the state of Oklahoma. It runs primarily in an east-west direction, connecting various towns and cities across the region. The highway is part of the historic U.S. Route 66, which is famous for its cultural significance and scenic views. The highway spans approximately 90 miles, starting from the town of Hydro in the west and ending at Claremore in the east. SH-66 serves as an important route for local traffic and tourism, providing access to various attractions and communities along its path.