U.S. Route 77 is a north-south highway that stretches approximately 1,200 miles across the central United States. It begins in Port Isabel, Texas, near the Gulf of Mexico, and travels north through several states, including Oklahoma and Kansas, before ending in South Dakota. Originally established in 1926, U.S. Route 77 serves as a vital transportation corridor, connecting various cities and towns along its route. It is known for its scenic views and accessibility, making it a popular choice for both local and long-distance travelers.