The Western End of a Cross-Country Route

Junction marker for Interstate 80 on US 101 northbound in San Francisco

The western end of Interstate 80 is not really marked in San Francisco. This junction assembly is one of the closest things to such an indication. It's on northbound US 101 south of the split between the Central Freeway (where US 101 continues) and Interstate 80 through the South of Market area of San Francisco

This photo was taken from the back seat of a cab -- hence, the odd angle -- on a mobile-phone camera in February 2013.