| A Joshua Tree in foreground stands guard over the wildly colorful massive sandstones of the middle Miocene Ricardo Group (roughly 10 million years old) in Hagen Canyon, Red Rock Canyon State Park, California. |
| A Joshua Tree in foreground stands guard over the wildly colorful massive sandstones of the middle Miocene Ricardo Group (roughly 10 million years old) in Hagen Canyon, Red Rock Canyon State Park, California. |