As we talked about maps a few days ago, I figured posting about this would be a good idea. Daedong Yeojido (대동여지도, 大東輿地圖) is a map published in 1861 by Kim Jeong Ho
(김정호, pen name Go San Ja 고산자) and remarkable for its accuracy. The map is a National Treasure of Korea (no. 850), it is 360 cm wide and 685cm high, with a scale of about 1:162 000.