The Solstice Project studies the rich astronomical heritage of the ancient Chaco culture in the American Southwest. Founded in 1978 by Anna Sofaer, our non-profit organization publishes research and produces award-winning films that document the Chaco culture’s scientific achievements.

Update on the Chaco Solstice Project, presented by Anna Sofaer and Rich Friedman to the San Juan Basin Archaeological Society last month, on YouTube. (Note: A few portions of the recording are hard to hear due to poor audio quality.) 

See December 2021 Annual Letter

 

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Watch Anna Sofaer in “The Vast Expanse of Chaco Culture” on ¡COLORES! Jan 15th at 4pm MST

 

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Brian Vallo, Governor of Acoma Pueblo, took critical steps to protect Chaco Canyon.

Chaco Astronomy

Book by Anna Sofaer of Solstice Project research

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The Mystery of Chaco Canyon

Award winning film by Anna Sofaer,
Narrated by Robert Redford

The LiDAR Project

Aerial Laser scanning reveals cosmographic Chaco roads

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The Sun Dagger Explorer Model

An interactive model at the New Mexico Museum of Natural History invites exploration of the site’s solar and lunar light effects

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