YANJI Border Wall Ruins

　　The border wall refers to a defensive wall that starts in Tushan Township, Helong County, stretches eastward for more than 150 kilometers, and terminates at Jilin Mountain in Changan Town, Longjing City. Locally, it is referred to as the “Great Wall,” “border wall,” or “border trench.”

　　The border wall spans nine townships across Helong County, Longjing City, and Yanji City. Its starting point is located on the slopes of Erdaogou in Dongshan Village, Tushan Township, Helong County, approximately 2.5 kilometers northeast of the Western Ancient City (the Bohai Capital of Xingde Prefecture). The Nan'gang Mountain Range and Ying'e Ridge meet about 35 kilometers slightly southwest of the starting point of the wall. This area features steep mountain terrain, with the sea-facing Lan River to the south, creating a highly strategic and rugged landscape. From Dongshan Village, the border wall extends northward through the northwest mountains of Xicheng Township, follows the edge of Yadong Reservoir, passes by the ginseng farm in Helong County, and then enters Longjing City, where it connects with the border wall of the orchard farm in Xilinhe Township. The wall continues northward to Changcheng Village, Xiaohuidong Village, and Xiaobei Village in Xin Township, then moves past Dongshan, Guandao, and Guanchuan in Taoyuan Township, Laotougou Town. It then turns northeast to Sishui Village in Tongfo Township and Shishan in Chaoyang Township, connecting with the border wall at Mantoushan in Badao Township. After turning eastward, it crosses Shuangfeng Village and enters Pingfeng Mountain, located 5 kilometers northwest of Taiyan Village in Yanji Township, Yanji City. It then extends southeast, connecting to the southern mountains of Taiyan and Xin’yan, the southern mountains of Xingnong Village, and Xing’an Township (Qingchaguan), before re-entering Longjing City and proceeding eastward to Mopan in Changan Town. This section is just 1 kilometer away from the Chengzi Mountain Mountain City (the Eastern Xia Dynasty’s Southern Capital). Finally, the border wall ends at Jilin North Mountain. To the east of this endpoint lies the Nan'gang Mountain Range, and about 15 kilometers to the east of the eastern foothills of the mountain is the Tumen River, which flows north.