The Academia Sinica archaeological team preliminarily dated finds from the Chienshan site to the time period of both cultural strata, while carbon-14 dating has identified them as spanning a 2,500-year period.
根據中研院考古團隊初步認定，大園尖山遺址出土文物包含兩個文化層年代，經碳 14 定年後，應確定橫跨 2,500 年時間。