This is the last section of former US 66 still signed in California. However, it is unsigned for some reason in Los Angeles County. Slowly, Caltrans is relinquishing segments to the cities it passes through. Eventually this will eliminate this route from the state.
State 66 at the LA/San Bernardino County line.
Section Marker for LA-9-D. Route 9 is the pre-1964 legislative number for Sign Route 66.
Same marker, different side – SBD-9-D
Junction at SR-83 (Euclid Ave) in Upland.
US 66 is signed at many intersections along Foothill Blvd. This one is at Mt. Vernon Avenue eastbound near the I-215 junction. This is new signage, and is a bit of a mystery.
US 66 signage in Rancho Cucamonga in February 2009.
First signage for State 66 heading west from the 215.