Sierra Highway

Sierra Highway or El Camino Sierra is a historic route in California, United States, that connects Los Angeles with the Eastern Sierra and Lake Tahoe. The trail formed in the 19th century before it was rebuilt as highways in the early 20th century. It follows parts of modern State Route 14, U.S. Route 395 and State Route 89. Two portions of this road are currently explicitly signed as Sierra Highway. The first is an old alignment of SR 14 (former U.S. Route 6) from Los Angeles to Mojave. This road is also signed with the unusual designation of State Route 14U through the city of Santa Clarita, and unsigned with the same 14U designation in the city of Los Angeles. The second part signed as Sierra Highway is a portion of US 395 in Bishop.

Traversing the extremes of California, from the Mojave Desert to the Sierra Nevada, El Camino Sierra has been advertised to the world as a highway to showcase the natural beauty of California as far back as 1910. Though most of the original Sierra Highway was rebuilt or bypassed in the early 1970s with modern highways, the road is still well known. The portion through the San Gabriel Mountains is noted as the primary filming location for the film Duel.