Mystery of Chaco Canyon on PBS

PBS repeated a show from 1999 by Anna Sofaer, the discoverer of the meaning of the Sun Dagger on Fajada Butte in Chaco Canyon, New Mexico. Sofaer has also discovered that various buildings in and around Chaco have very specific orientations to the sun and the moon (which she says no other culture has done) and to each other. The computer animations depicting the movements of the sun and moon relative to the buildings is a great part of this show. A videotape is available. mjh

The clearest way into the universe is through a forest wilderness. — John Muir 1838-1914