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Sun-Earth Day Presents: Ancient Observatories, Timeless Knowledge

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Wijiji, Chaco Canyon

Wijiji, Chaco Canyon

This photo was taken from inside the northwestern corner of the Wijiji Great House. It is believed that this site may have been used as a calendrical station for the winter solstice. On December 4-5 the rising sun appears in the leftmost region of the deepest notch on the horizon. Over the next 16-17 days the rising sun appears further and further to the right until finally reaching the rightmost region of the notch on the winter solstice.

Photo Credit: Troy Cline

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