作南北走向的张广才岭,其中段是吉林市管区与延边朝鲜族自治州的分界线。在以岭为界的蛟河市与敦化市的山谷间,通过普查发现数座辽金古城:在岭东的敦化市境有西北岔古城、帽儿山古城;在岭西的蛟河市境有三合屯古城、春光北山古城、上参营古城、下参营古城,而尤以座落于张广才岭上的前进古城规模最大,地势最为险要,现对此城考证如下: Zhang Guangcai for the North-South trend, the middle section of which is the dividing line between Jilin City and Yanbian Korean Autonomous Prefecture. In the valleys of Jiaohe and Dunhua, the census found several Liao-Jin ancient cities: the ancient city of West Beicha in Dunhua, and the ancient city of Maoershan in Linghua; the Jiaohe City in Lingxi The ancient city of Sanhe Tun, ancient city of Spring Beishan, on the camp city, under the camp city, and especially located in Zhang Guangcai on the progress of the ancient city of the largest, the most terrible on the terrain, now the city research is as follows: