황해북도
The royal tombs are scattered around southwestern North Hwanghae Province, with most of them located within 20 kilometers of Kaesong, the Koryo capital. Most tombs are located in Kaepung County, which borders Kaesong to the west, though there are also a significant number in Changpung county, which borders Kaesong to the east. Some tombs, all unidentified, are also located within Kaesong itself.