Goksan Yeon clan (Korean: 곡산 연씨; Hanja: 谷山 延氏) is one of the Korean clans. Their Bon-gwan is in sinpyong County, North Hwanghae Province. Yeon clan originated...

(불기산; 佛岐山) – 610 metres (2,000 ft) Bulgoksan (불곡산; 佛谷山) – 468.7 metres (1,538 ft) Bulgoksan (불곡산; 佛谷山) – 345 metres (1,132 ft) Buramsan (불암산; 佛岩山) – 468...