U.S. Route 101
U.S. Route 101, or U.S. Highway 101 (US 101) is a north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Road) where its route along the southern and central California coast approximates the old trail which linked the Spanish missions, pueblos, and presidios. It merges at some points with California State Route 1 (SR 1).
U.S. Route 101 in California
From Ventura and through Santa Barbara, US 101 closely follows the Pacific coastline (generally no more than from the shore) until Gaviota State Park, about west of Goleta. At Gaviota State Park, the highway shifts back from an east–west highway to a north–south alignment. About north of this point, US 101 passes through the Gaviota Tunnel.