If you go up to Marin County and hike to the end of Tennessee Valley, you come to Tennessee Beach. There, over thousands of years, the ocean has carved a cove into the hillside to expose layer upon layer of the edge of the North American Plate. The patterns are beautiful in the bands of chert and serpentine. Sites like this, where so much geological time is exposed often have an intense temporal energy. Canyons, cliffs and other natural openings in the earth can be the type of places where time itself is loosened.
This piece is also featured on a print/poster available from Society6.