Originally commissioned in 1926, US Highway 80 ran from the Atlantic Ocean in Georgia to the Pacific Ocean in San Diego. Here are images I shot October 12 2006 of the amazing 37 mile stretch in San Diego County. Along most places on this stretch you may as well be back in the 1930s, little has changed.
Here are some detailed stories regarding this historic San Diego highway:
San Diego Union - 80 at 80
US Highway 80 - The Broadway of North America
Weekend Driver - The Sweetest Roads in San Diego
Here's another San Diego Union story on the highway and it's history in Imperial County. Unfortunately I wasn't able to follow it into Imperial on my trip:
Defeating the Dunes