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 Oregon
North of Seaside, US 101 follows the coastal plain through cities such as Gearhart; a spur route (Oregon Route 104) provides access to Fort Stevens State Park. US 101 soon enters the city of Warrenton, Oregon (where Business 101, which is more of a scenic route, providing access to the Astoria-Warrenton Airport, Fort Clatsop, and Miles Crossing) and then crosses Youngs Bay into Astoria, Oregon. 101 passes through the northwestern edge of Astoria, until an intersection with U.S. Route 30. At this intersection, 101 climbs an access road onto the Astoria-Megler Bridge over the Columbia River, and crosses into the state of Washington.