And finally, a year later, the rock. It has many layers like the rings of a tree. I think it is a sedimentary rock; this means that it was formed under water. Dead sea life and other debris fell to the floor of the ocean and a long time and a lot of pressure turned it all into rock. I have never seen a rock like this anywhere in Japan, and I was surprised to see it here on Iwamayama in Ishiyama at an elevation of about 300 meters. It was either tossed here by a volcano or a glacier, or this area was under water a long time ago.