U.S. Route 101 is a major north-south highway that runs along the western coast of the United States. It stretches approximately 1,540 miles from Los Angeles, California in the south to Olympia, Washington in the north. The route passes through several key cities, including San Francisco and Portland, and offers scenic views of the Pacific Ocean. Originally established in 1926, U.S. Route 101 is part of the U.S. Highway System. It serves as a vital transportation corridor, connecting various communities and providing access to numerous attractions, such as Redwood National and State Parks and Big Sur. The highway is known for its diverse landscapes, including coastal cliffs and lush forests.