The Mountain Resort is closely related to the river engineering of Jehol.Based on the archival materials,this paper interprets the specific drawing time and author of the Map of Rivers and Mountains outside Jehol.It comprehensively read and analyzed the river engineering tablets inscribed in 1888–the"Palace Wall of Mountain Resort and Various Works of Wuli River Embankment"and the"Year Maintenance Statute of Wuli River Xiya Dam".The river engineering project including two phases from 1884 to 1888 were the most expensive one of Jehol in the lat...
