With the passing of time, two of the caves where Monardao, leader of the Wushe Incident, finally committed mass suicide with his tribespeople rather than surrender, had been blocked off by tree roots and fallen rocks.
霧社事件首領莫那魯道及其族人，最後死守而集體自殺的三個岩窟，由於年代久遠，有兩個已被樹根及崩石封住。