Joseon peoples territorial consciousness was constantly changing according to Joseons diplomatic relations with China and the Jurchens, or to the cartograph- ers historical consciousness and political orientation. When the Mt. Baekdu Demarcation Stele was erected in 1712, diverse opinions were presented with regard to this issue. Some regarded the Tumen river that was referred to on the stele as being one and the same with the Dumangang river, while others pointed out that despite the two rivers sources being different, they still converge at a certain point in the end. Still others viewed the two rivers as separate, even assuming the existence of another demarcation river between the two countries. Changed perceptions of boder regions are faithfully reflected in the borderregion maps of the late Joseon period. In the maps that are presumed to have been drawn prior to the erection of Mt. Demarcation Stele, the northern territo- ry is roughly or erroneously illustrated, while in the maps that were later pro- duced, the location of the Seonchullyeong pass is clearly marked. In the maps describing the topographies of Joseon and the Chinese northeastern area, there are margin notes that refer to the Seonchullyeong pass as 280 km north of the Dumangang river or as the border of Goryeo. This tells us that the Joseon peoples active appropriation of the old areas of the ancient states permeated in the maps they produced.