The Ridge Route over Tejon Pass has a notable history. Two versions of this route were constructed before the completion of Interstate 5 in 1970. This route played a significant role in connecting Los Angeles to Central California.

Further details about the Ridge Route can be found in a commentary that explores its story. For those interested in learning more about the history of the Ridge Route, additional information is available from the Los Angeles Times, providing a deeper look into its past and significance.