State Route 91 (SR 91) is a major east–west freeway located entirely within Southern California and serving several regions of the Greater Los Angeles metropolitan area. Specifically, it currently runs from Vermont Avenue in Gardena, just west of the junction with the Harbor Freeway (Interstate 110), east to Riverside at the junction with the Pomona (State Route 60 west of SR 91), and Moreno Valley (SR 60 and I-215 east of SR 91) freeways. The route is part of the California Freeway and Expressway System. SR 91 is part of the State Scenic Highway System from SR 55 to the east city limit of Anaheim, in the western part of the Santa Ana Canyon, and is eligible for the system through the canyon to Interstate 15.