Gansu's first integrated transportation and tourism project, the Xuanquan Posthouse World Cultural Heritage Site, is developed by the Gansu Provincial Transport Construction Group.

Located in Tianshuijing, Mogao town, Dunhuang, the site is a key part of the "Symphony Silk Road Route No 1", under Gansu's national pilot program for building a strong transportation network. It lies approximately 60 kilometers from Guazhou county and 64 km from downtown Dunhuang.

The site integrates highway services with cultural exhibition functions, merging the ancient postal relay station with modern service area concepts. Its core attractions include the Xuanquan Posthouse site, Xuanquan Spring, and related facilities.