We visited the majestic Red Rock. Two monumental cliff faces loom on either side of the amphitheater. The "rocks" used to be ancient seabed that was lifted by the earth into its current position. It's a Wonder.
Across the way, we saw a concretion, embedded in a wall along Dinosaur Ridge. This one was a ball in sedimentary rock, probably sandstone, and formed by some chemical process after the rock was deposited. On the one hand, it's just a ball o' dirt. On the other, maybe there's some fossil treasure inside?
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