A map of a mountain produced in 1718 when selecting a burial place for Lady Choi, a birthmother of Yeongjo and a concubine of Sukjong. Soryeongwon area which is now situated in Yeongjangli, Gwangtanmyeon, Paju city in Gyeonggi province, was selected as a candidate for the burial place and the picture was painted to show that it was a good place. Whenever there was a funeral of the king or the queen, the royal palace would send an official who was good at Chinese geology to look for the good place for the burial. When he was reporting back to the king, he produced such map and writing. Sanron was a written description about the geological factors of certain place. Yeoning-gun (Yeongjo)’s stamp is sealed.