WILDERNESS
REAL
Dragon Mountain (Yongsan)
Yongsan-gu · Seoul · South Korea
Single-mention reference in Techno Ranger. Yongsan literally translates as 'Dragon Mountain', so this is most likely the books' poetic alt-name for the Yongsan Garrison hill.
Yongsan-gu means 'Dragon Mountain district' in Korean. It is the area around Camp Kim and the former US Yongsan Garrison.
37.5450000, 126.9870000 (district precision)