50 million years ago, long before man depicted his experiences on the walls of caves, Nature was painting her own petroglyphs. Shale holds symbols of suns, moons, hearts and an almost infinite variety of patterns and designs. The rock forms thin bedded sheets which can be opened like pages in a book. Each page is a part of a vast book. In seeing and enjoying, you add to the story.
ESSENCE OF THE PAST a photo-geologist's perspective Published July 09, 2009
EOCENE ART Published April 03, 2007
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