After going past Bel Air, it parallels the freeway up the Sepulveda Canyon. At the Skirball Cultural Center, Sepulveda Boulevard then curves west away from I-405, passes through a tunnel under Mulholland Drive, and then follows a serpentine route down the north side of the Sepulveda Pass. It then passes under I-405 just before crossing Ventura Boulevard in Sherman Oaks. Sepulveda Boulevard then runs parallel to the east of I-405, crossing the Ventura Freeway (US 101) and the Los Angeles Metro G Line rapid transit route, and through the San Fernando Valley communities of Van Nuys and North Hills, to its northern terminus at the Rinaldi Street interchange with I-405 in Mission Hills.