This is the "Cholla Garden" in Joshua Tree National Park. A walk through this area tends to leave one covered with nasty spines.
Here is a Joshua Tree and one of the numerous large boulders present in the park.
This shows a large Joshua Tree and numerous others visible in the background.
This a detail photo of a cactus. It was taken in the "Hidden Valley" section of Joshua Tree National Park.
These are salt flats near Amboy, CA.
This is taken from within Amboy Crater, a cinder cone. The lava stretches for miles into the distance.