There are 9 routes assigned to the "N" zone of the California Route Marker Program, which designates county routes in California. The "N" zone includes county highways lying in Los Angeles and Orange
Jackson Lake, on County Route N4 near Big Pines.
Ridge Route
Videos
The Ridge Route, officially the Castaic–Tejon Route and colloquially known as the Grapevine, was a two-lane highway between Los Angeles County and Kern County, California, United States. Opened in 191
View of the route, 1920
Remains of the steps to the National Forest Inn
Historical marker
Looking north through Swede's Cut