March 21st Sinagua Equinox Sun Calendar

A rock art archeaologist, Ken Zoll, author of Sinagua Sunwatchers, and Understanding the Rock Art of Sedona, has discovered that at 1:42 pm on March 21st, the rock art wall at VbarV just outside of Sedona, for a few minutes has a shaft of light which illuminates the spiral petroglyph seen at the bottom left of the shaft of light, marking the calendar time of the spring equinox