According to the 360 map, the distance from Ganquan to Yan 'an is 40.8 kilometers, and it takes 47 minutes to drive there. Yan 'an City, referred to as "Yan" for short, is located in the north of Shaanxi Province, in the middle reaches of the Yellow River, in the south-central part of the Loess Plateau, 37 1 km north of the provincial capital An. Yulin in the north, Xianyang, Tongchuan and Weinan in the south, Linfen and Lvliang in Shanxi across the Yellow River in the east and Qingyang in Gansu in the west, with a total area of 37,000 square kilometers.