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| Joshua Tree and the famous rockpiles. Blocks of granitic rock develop joints, round by erosion, then more recent arid climate and flash floods expose the boulders. | |
| Total images: 77 | Last update: 4/24/10 4:53 PM | Help | |
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| Joshua Tree and the famous rockpiles. Blocks of granitic rock develop joints, round by erosion, then more recent arid climate and flash floods expose the boulders. | |
| Total images: 77 | Last update: 4/24/10 4:53 PM | Help | |