State Route 126 is a state highway in the U.S. state of California that serves Ventura and Los Angeles counties. The route runs from U.S. Route 101 in Ventura to Interstate 5 at the Castaic Junction-S

Castaic Junction is an unincorporated community located in Los Angeles County, California. It is located at the crossroads of Interstate 5 and State Route 126 near the confluence of Castaic Creek and