The four stone scenic area is located in the Danqing River Forest Farm in Yilan County, at an altitude of 980 meters. The attractions include Moon Gate, First Line Tian, etc. The mountains and forests here are dense and beautiful. It was once a camp for the Northeast Anti-Union and has many relics of anti-Union activities. Such as anti-linking wells, quilt factories, hospitals, sentries, conference sites, etc., now is the red patriotic education base.