I believe that too. It must have needed thousands of years to shape this rocks into what they see here now. For them even humans would be a quick event to occure. I actually did not look for sea shells but I believe that you could find some amazing relicts of time in the ground if you would start diggin ^^ .. I did not feel any ghost around there, but I believe that there are still some ancient dwarfs tribes out there hiding in the whole Stolowe Mountains.