Wife is from Portland and her brother lives in Astoria so I get to travel that route almost every year. Highway 101 splits into California 1 at Ft Bragg and follows the coast all the way to San Diego. Great road for a bike or the Eliowe haven't run that road ... the coastal highway we traveled in Oregon was number 101 .... unlike the east coast, that section of the west coast is pretty much undeveloped .... the views overlooking the ocean on the entire 100 +/- mile drive on 101 are remarkable