U.S. Route 101
The nearly highway's northern terminus is in Tumwater, Washington: the route remains along the Olympic Peninsula's coastal perimeter west, north, and east; the northernmost point on the highway is in Port Angeles. The southern terminus of US 101 is in Los Angeles at the East Los Angeles Interchange, the world's busiest freeway interchange.
California State Route 41
Except between US 101 in Atascadero and SR 46 near Shandon, SR 41 is part of the California Freeway and Expressway System, and north of SR 46 is part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration. Three segmentsfrom SR 1 to US 101, SR 46 to SR 33, and SR 49 at Oakhurst to Yosemite (the Wawona Road)are eligible for inclusion in the State Scenic Highway System, but SR 41 is not officially designated as a scenic highway by the California Department of Transportation. SR 41 is known as the E.G. Lewis Highway from SR 1 to US 101 in San Luis Obispo County, the Dwight David Eisenhower Memorial Freeway from Ventura Avenue in Fresno to Herndon Avenue in Fresno, the Donald DeMers Highway from Jensen Avenue in Fresno to Elkhorn Avenue, the Yosemite Freeway from Elkhorn Avenue to the Fresno-Madera County line, the Southern Yosemite Highway from the Fresno-Madera County line to Yosemite National Park, and the Wawona Road from Fresno to Yosemite National Park.