This brought the Chienshan prehistoric site to the awareness of archaeologists. In a 1949 article, Professor Kokubu provides an estimate of its size at the time of its discovery 60 years ago, stating that it covered five hectares of slopeland on Chienshan at an elevation of 37.1 meters.
國分直一教授於 1949 年發表〈關於最近踏查之新竹縣及台北縣之海邊遺跡〉一文中所述，「遺跡散布於尖山，標高 37.1 公尺，面積約 5 甲之斜坡地之全面。」