[해외자료] The Bunkers at Kyongje-dong
...underground facility (UGF) located in an isolated valley on the northern slopes of Kungjang-san (궁장산, Kungjang Mountain) near the agricultural hamlet of Kyongje-dong (경제동), Yontan-gun (연탄군, Yontan County) approximately 17 kilometers northeast of the Sariwon-si (사리원시, Sariwon City), Hwanghae-bukto (황해북도, North Hwanghae Province) and 53 kilometers south-southeast of the capital city of Pyongyang-si (
평양직할시).