The Carrizo Plain National Monument is in San Luis Obispo County, California, west of Bakersfield. The San Andreas Fault, a well known earthquake fault, runs through it and has contributed to it's formation.
There is a soda lake in the middle of it, which is surrounded by hills that in a good year will be covered with wildflowers. Last year was a very good year, and I went there 3 times in the Spring.