Ch'ŏngsansŏng
Ancient fortress in Buyeo, South Korea
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Ch'ŏngsansŏng (Korean: 청산성; Hanja: 靑山城; RR: Cheongsanseong) was a Baekje-era Korean fortress in Buyeo County, South Chungcheong Province, South Korea. On January 21, 1963, its former location was declared Historic Site of South Korea No. 59.[1][2]
| Ch'ŏngsansŏng | |
|---|---|
The former location of the fortress | |
 Interactive map of the Ch'ŏngsansŏng area | |
General information | |
| Location | Buyeo County, South Chungcheong Province, South Korea |
| Coordinates | 36°17′41″N 126°55′44″E |
| Design and construction | |
| Designations | |
| Designated | 1963-01-21 |
| Reference no. | 59 |
It was possibly built around 605 (Korean calendar). It is connected to the Naseong City Wall, and was possibly built around the same time as that wall.[2] The fortress had two sets of walls, an inner wall with circumference 300 m (980 ft) and outer wall with circumference 500 m (1,600 ft).[1] It was on top of a small mountain. It is mentioned in the Samguk sagi. The only significant remains of the fortress that still exist are earthen ramparts.[2]