by The American Geosciences Institute Tuesday, February 28, 2017
The boulder perched atop this 39-meter-tall rock formation, which may be the most famous of many similarly named rock formations in the United States, is estimated to weigh 3,577 tons.
The formation is easily visible from the main road through one of America’s most popular national parks, founded in 1929, which hosts more than 2,000 documented rock arches ranging from 1 meter to almost 100 meters across.
The rock formations in the park arose through weathering and erosion of sandstone layers, which were upwarped into anticlines by underlying salt beds hundreds of meters thick, and acted on by water, ice and extreme temperatures over the last 65 million years.
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Answer: Although many similarly named formations exist in the U.S., Balanced Rock in Arches National Park is perhaps the most recognizable. Hewn by weathering and erosion, the 39-meter-tall sandstone feature is easily visible from the park’s main road. Photo is by Jordan Makower.
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