Los Angeles County Department of Public Works has a wealth of information available on their website. With a bit of patience and some looking around, you can find quite a few treasures using their mapping application. I’ve so far found the original survey data for the “Bridge To Nowhere” roadway, plans for other roadways that were never built in the Sierra Pelona Mountains, as well as the forest service permit for the Shoemaker Canyon Road that was never completed.
Here is a very detailed site covering, among other things, Joshua Tree National Park.
Amtrak’s Pacific Surfliner train has a really good site with lots of information at:
Interesting site with videos and information about a few of the highways in Southern California and Arizona.
This is a really interesting site that has a discussion forum for old highways throughout the US. Help contribute to the discussions!
There appears to be the beginnings of a small swarm of earthquakes in the Brawley Seismic Zone, this time in the town of Brawley, California. The USGS has a great website on swarms and why they occur.
Here is a link to a site with photos and information about the new construction on the Westside Parkway in Bakersfield, CA.
Fire Perimeter Map from InciWeb as of 8/17/2016 at 8:22 am