| Cheong-ok-san / Duta-san 청옥산 1403m / 두타산 1353m County Park of Samcheok City major twin mountains on the Baekdu-daegan Ridgeline |

| Duta-san's summit, part of the Baekdu-daegan |



| frozen in winter |
| the summit of Duta-san, already icy in Autumn, from Choson Wolgan SAN magazine, Sept 2010 |

| Duta-san seen from south of it, on the Baekdu-daegan crest-trail photos by Roger & Andrew |


| Duta-san's Galmi-bong, a challenging peak on the Baekdu-daegan crest-trail |