I recently presented one of my discoveries to the San Diego Rock Art Symposium. It is the methods and tools I used to identify a June solstice alignment at Piedras Grandes in the Anza Borrego desert. I’m now sharing that presentation with you.
I recently presented one of my discoveries to the San Diego Rock Art Symposium. It is the methods and tools I used to identify a June solstice alignment at Piedras Grandes in the Anza Borrego desert. I’m now sharing that presentation with you.