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 from Los Angeles to Mojave. From Wikipedia