Chaco Astronomy: An Ancient American Cosmology

Anna Sofaer found the now-famous "Sun Dagger" petroglyph site on a desert butte high above Chaco Culture National Historical Park at Summer Solstice in 1977, leading to 30 years research into the meaning of ancient Chaco's astonomical expressions. Chaco Astronomy brings together all the major findings of Solstice Project's many researchers, changing forever the understanding of a place often called "America's Stonehenge"

Nine revealing chapters explore the sophisticated lunar and solar alignments of major buildings, implications of the Great North Road, a remarkable digital reconstruction of the Sun Dagger site, and more. Richly illustrated with photos, charts, maps, and diagrams.

Sofaer and the highly qualified science team of the Solstice Project struggled to overcome resistance to their findings by an entrenched archaeological establishment. As deeper investigations provided more and more substance to her findings, Sofar now stands tall as one of the great pioneers of American archaeoastronomy.