The site consists of two separate burial mounds, "Hyonnung", which contain the remains of Gongmin, 31st king of the Goryeo Dynasty, and "Jongnung", which contains Queen Indeok, born the Mongolian princess Budashiri.

Nominated for World Heritage status, it is one of the best preserved royal tombs in North Korea which remains in its original state, having avoided extensive restoration under the Communist government.

The tombs consist of a carved granite base topped with a small hill; they are surrounded by statues of sheep and tigers.

Their placement was an important consideration for the king, and many geomancers, astrologers, and mathematicians were consulted to make sure the site had good feng shui (known as pung su in Korean).

When he reached the top of the mountain, exhausted, he dabbed his brow and surveyed the area; delightedly, he found it to be perfect and prepared to personally congratulate the young man.