The distance from Langfang to Yanjiao is 66.4 kilometers, and Yanjiao is located in the triangle of Hebei and Beijing. Yanjiao was named after Yanjiao during the Spring and Autumn Period and the Warring States Period. It has a history of more than 3,000 years and has the reputation of "the emperor opens the palace door with his feet".

It now governs 55 villages and streets, and is a national economic and technological development zone with a total population of 800,000 and an area of 108 square kilometers. Yanjiao has pleasant ecology, flat terrain, pleasant climate and beautiful scenery. Yanjiao has convenient transportation. The Beijing-Harbin Expressway and the Beijing-Qinhuangdao electrified railway run east-west, and the Beijing 930, 81-819 buses go directly to Yanjiao.

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Yanjiao Town, located on the Chaobai River in sanhe city, has a natural park of 10,000 mu. There are two golf clubs, Jinghua and Huatang, and Yanlong Ecological Park along the Chaobai River. At present, Yanjiao Town has three professional villages: greenhouse vegetable village, Dashigezhuang Lishu village and Xicheng Ziguoshu village. It is a good place for tourists to enjoy farm scenery, eat farm dishes and listen to farmhouse music.

The traffic in this city is very convenient. Beijing-Qin electrified railway and Beijing-Qin highway are the main routes. The roads in the town include Yingbin Road, Yanling Road, Yanchang Road, Shenwei Road, Xueyuan Road, Yanshun Road, Yang 'ao Road, Haiyou Street, Xinggong Street and Xueyuan Street.