Pacific Highway (United States) from the Hudson's Bay Company were the first non-Native Americans to use the route of the future Pacific Highway to move between today's Washington State and "Alta California." During the second half of the 19th Century, mule trains, stagecoaches, and the Central Pacific Railroad also followed the route of the Siskiyou Trail. In the early 20th century, around 1910, entrepreneur Sam Hill lobbied the governments of Washington and Oregon to build automobile roads along the path of the Siskiyou Trail, with the ultimate goal of building a paved auto route from Canada to Mexico. Pacific Highway (United States) Pacific Highway
California State Route 1 a string of fatal accidents in the area, including one involving Caitlyn Jenner that claimed another person's life. The Calera Parkway project proposes to widen the non-freeway segment in Pacifica between the Rockaway Beach and Vallemar districts, but faces opposition by local residents and environmentalists. California State Route 1 State Route 1 (SR 1) is a major north–south state highway that runs along most of the Pacific coastline of the U.S. state of California. At a total of just over , it is the longest state route in California. SR 1 has several portions designated as either Pacific Coast Highway