CA poppy ~ 05/06/10 ~ Pinnacles

California poppy
Eschscholzia californica
Papaveraceae

California poppies were so prolific near the parking lot and picnic areas that I suspect they were planted there, versus naturally growing wild.

ps 05/10/11 - For more information about CA poppies than you can shake a stick at, check out Curtis Clark's CSU Pomona poppy website.