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 Pacific Railroad the route of the California Northern Railroad between Vallejo and Suisun and can be seen along portions of State Route 12. The original Cal-P line ran to Vallejo, not along the present main line route through the Suisun Marsh between Suisun – Benicia – Martinez. The Southern Pacific line between Martinez and Sacramento (or perhaps Oakland and Sacramento) was informally known as the "Cal-P" after the original builder of the line, the California Pacific Railroad. California Pacific purchased the Napa Valley Rail Road at foreclosure on June 9, 1869. The Napa Valley Rail Road was built from the head of