Balanced Rock—Garden of the Gods, Colorado Springs, Colorado
We know what you’re thinking: How is this possible? Well, this 700-tonne red sandstone rock has been putting on this balancing act for two to three million years, but its history goes far beyond that. It started to form over 290 million years ago as Fountain Formation sandstone was deposited along the Ancestral Rockies (a different set of Rocky Mountains that once existed there). Thomas Grose, geology professor emeritus at the Colorado School of Mines, explains that Balanced Rock “was sculpted over the following millennia by glaciers, rivers, wind, and rain.” Since then, erosion has continued to occur, leaving visitors and geologists wondering when the beloved rock will eventually tumble.
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