US Highway 101

US Route 101 is a major north-south highway on the West Coast of the United States, spanning over 1,500 miles through California, Oregon, and Washington. It runs parallel to Interstate 5, which serves the largest cities in the region, and is designated as a primary route despite its three-digit number. The highway follows the Pacific Ocean for most of its length and is known by various names, including the Oregon Coast Highway and the Olympic Highway. US Route 101 passes through several national parks and is designated as a scenic byway in Washington. It was established in 1926 and has undergone several changes over the years, including the relocation of sections in response to landslides and erosion.learn more on wikipedia