Songzhou Ancient City

@The ancient city of Songpan County, located in the northeast of Aba Tibetan and Qiang Autonomous Prefecture in Sichuan Province, formerly known as Songzhou, is a historic city in Sichuan Province and a famous border town. It is also known as the "gateway to western Sichuan" and was used as a military base in ancient times. According to historical records, ancient Songzhou was known for its control over the Minling Mountains, control over the source of the river, adjacent to Helong on the left, and reaching Kangzang on the right. It was also known for its ability to shield Tianfu and lock up the Yin border. Therefore, since the Han and Tang dynasties, this area has been guarded by Guan Wei and stationed with heavy troops. Songpan County is also the only way to Jiuzhaigou Valley Scenic and Historic Interest Area