E-Kyujanggak: Old Maps 규장각 고지도
Provides digitized collections of the Kyujanggak Institute of Seoul National University with high-definition digital images of more than 220 old Korean maps along with detailed information about the regions. A special viewer needs to be downloaded.
Library of Congress - Maps of Korea
The Library of Congress Geography and Map Division has digitized a number of modern and historical maps of Korea and made them available to the public. To browse or search the entire Map Collections database, see their web page.
Sea of Korea Map Collection
The Sea of Korea Maps Map Collection at the University of Southern Calofornia Library consists of original old maps, dating from 1606 to 1895, in English, French, Japanese, Korean, Dutch, Latin, German and Russian.
Duke's Korean collection on Maps