in 422 a.c, xie was sent to yongjia county as prefecture chief. one day, he came to the root of middle yandang mountains and inspected the farms. at that time, he was attracted by the landscape and wrote, “the far embankment lies thousands of miles, the long spit of land like river flows millions of miles.”(chinese: 千里带长堤，万里泻长汀。)because of the fame of xie, middle yandang mountains became more and more well-known.