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View a Demonstration of the Sun Dagger Model

The Solstice Project is a non-profit organization dedicated to the study of the rich astronomical heritage of the ancient Chaco culture of the American Southwest. Founded in 1978 by Anna Sofaer, initial efforts focused on the study, documentation and preservation of the Sun Dagger site, a remarkable celestial calendar of the ancestral Pueblo Indians. Subsequent Solstice Project research and films have revealed that the Chaco culture's ceremonial architecture was built to align with the cycles of the sun and moon, and that the elaborately engineered Chaco Great North Road was constructed to commemorate celestial north. Our research continues to enrich studies of archaeology, archaeoastronomy, anthropology and Native American cultures


Solstice Project News, Updates, and Events

Fracking Threatens Chaco: a Sacred American Heritage: our new 4 minute video shows the immense dangers of the BLM's expansion of fracking in the sacred landscape of Chaco archaeology, calling people to send their views to Interior Secretary Jewell .... see more

Updated letter to Secretary Jewell: October 2014 update...see more

Archaeologist John Roney and Anna Sofaer recently developed an "Urgent Proposal to Record Chaco’s Prehistoric Roads" to submit to BLM in its current “scoping period.” To support this proposal with your own comments.... see more

The Solstice Project is now producing "Written on the Landscape: Mysteries Beyond Chaco Canyon" a new one hour documentary for PBS . ...see more

You Can Now Stream THE MYSTERY OF CHACO CANYON  narrated by Robert Redford. It continues to be broadcast across the country.Franz Joachim, the CEO of PBS of New Mexico, reports about the viewing of The MCC: "The average Prime Time rating was 2.8. These are the kinds of numbers we expect with Nova, Nature and Masterpiece Theatre."

Solstice Project Annual Letter 2013 for more information on our new film

The Solstice Project's LiDAR Study Reveals Chaco Canyon's Great North Road published in American Archeology  
More info...

The National Trust for Historic Preservation and the Solstice Project announce inclusion of the Greater Chaco Landscape in the 2011 List of America's 11 Most Endangered Historic Places   More info...

National Trust for Historic Preservation supports the Solstice Project's LiDAR documentation of Chaco's Great North Road and related video productions.
More info and video
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Museum Installation of the Sun Dagger Explorer: The Solstice Project's interactive computer model of The Sun Dagger of Chaco Canyon openend May 15, 2009 at The New Mexico Museum of Natural History and Science ,1801 Mountain Road NW Albuquerque, NM.
Read more...

The Sun Dagger Explorer model wins the MPMA 2009 Publication Design and Technology Competition multimedia category. Read more...

April 20, 2013 Seminar at Commonweal: Sun and Moon in Sacred Geometries
New Insights into the Chaco and Maya Cultures by Anna Sofaer and Christopher Powell

New Insights into Chaco Roads with New Technology May 15, 2011 at the Anasazi Heritage Center in Dolores, CO. Read more...

Talks at Southwest Seminars on January 3, 2011: Rich Friedman on "the Chacoan Great North "Road" LiDAR project" and Anna Sofaer on "Ancient Chacoan Roads:
New Aerial Technology provides new Insights":
Read more...

The Great North Road Presentations: The Solstice Project organized a symposium on Chaco Roads, in Farmington, NM. on our new research in progress. Read more...

Chimney Rock, Chacoan site of spectacular lunar alignment was designated a National Monument  Read more...

Learn about Protecting Chaco, a World Heritage Site. These organizations are valuable resources. Read more...

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