Laurel Canyon Boulevard is a major street in the city of Los Angeles. It starts off at Polk Street in Sylmar in the northern San Fernando Valley near the junction of the San Diego (Interstate 405) and the Golden State (I-5)) freeways. Laurel Canyon Boulevard bypasses the city of San Fernando to the west, running parallel to I-5 in the vicinity of Pacoima and Arleta. The portion through Sun Valley passes through rock quarries and a great deal of open space.