Prediction of the Ikari Flood
A heavy rain that continued falling from August 7, 1722 cut down a bank of Lake Ikari, and its water began to flow towards the area of Utsunomiya. It was at that very moment that the ginkgo tree at the foot of Mount Haguro-yama fell down aside as if the tree would block the flow. In addition, an old cedar tree of Futaarayama Daimyojin surprisingly flew towards Mount Haguro-yama to support the ginkgo tree. Utsunomiya was saved from the great flood in this way.