HISTORIC HIGHWAY 99 ASSOCIATION OF CALIFORNIA
Keep California’s Main Street alive.
Discover the road, the places, and the people that shaped California. Help preserve the history of former US Highway 99 for the next generation.
ONE ROAD. COUNTLESS STORIES.
Follow the history. Find your connection.
Established in 1926, US Highway 99 became a vital link between communities across the Pacific states. Its California route ran 917 miles, from the Oregon border to Calexico.
01 / DISCOVER
Get to know US 99
Start with the highway’s story, then trace its route through California’s cities, valleys, and mountain passes.
02 / EXPLORE
See the road’s landmarks
Explore historic locations, the Palm and Pine, and stories from along the highway.
03 / PRESERVE
Help history stay visible
Learn about the Association’s projects and find a way to contribute to the future of Historic US 99.
PRESERVATION IN ACTION
Make the past part of the road ahead.
The Association was founded in 2020 to give US 99 and its history a stronger voice for preservation. Historic route signs help keep that story visible along the roadway.
Explore our projects, including the effort to mark the historic Palm and Pine site near Madera.
KEEP US 99 ALIVE
A historic highway needs a community.
Join the Association, support its work with a donation, or find another way to get involved. Your participation helps preserve the road and the stories along it.