Chaco Culture National Historical Park Warnings Or Dangers Tips by AlbuqRay

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Old Threatening Rock Before and After Its Collapse - Chaco Culture National Historical Park

Old Threatening Rock Before and After Its Collapse

Old and Existing Threatening Rocks

On 22 January 1941, a section of the canyon wall by Pueblo Bonito known as Threatening Rock collapsed, destroying some of the pueblo's rear wall and a number of rooms. The rock stood 97 feet (30 m) high and weighed approximately 30,000 tons. The resulting enormous pile of debris now forms the high point on the trail through Pueblo Bonito. However, just east of the old Threatening Rock site (on the Petroglyph Trail) stands another threatening rock. Although it is huge, the existing threatening rock is only about one-fourth as large as the 1941 Threatening Rock. Who knows when it will come crashing down!

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  • Updated Nov 20, 2011
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AlbuqRay

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