The antithetical couplet of Xiaoguan Tower
The peak height of which is 3, feet in Hua Yue
According to the risk of Qin Guan Bai Shuang
Note: (1) Xiaoguan, the name of ancient Guan, is located in the southeast of Guyuan, one of the "Nine Borders" towns in Ming Dynasty, which is the traffic hub from ancient Guanzhong to Saibei. Today, Guan Lou no longer exists.
(2) Peak refers to Liupanshan in Guyuan.
(3) Hua Yue refers to Huashan Mountain in Xiyue.
(4) Qin Pass, namely Hangu Pass in Lingbao County, Henan Province.
(5) One hundred and two, one hundred and twenty.