| Period | Landscape characteristics and changes | |
|---|---|---|
| Chosun dynasty 1750-1871 | West mountain chain spreads from east Daeryongsan to bonguisan and river. A part of little mountain chains surround hyanggyo (the confucian temple and school) East, south, north part of Bonguisan are surround by river and east side of little mountain and mountain chains reach to Bonguisan | |
| Modern era 1894-1895 | There is a mountain chain that spreads to Bonguisan’s left and right side and Pinus densiflora’s exist center part of Bonguisan and left and right side of mountain chain Pinus densiflora’s exist end of the west part of Bongisan mountain chain and backside hyanggyo which is east side of mountain chain, and ridge from east side of mountain chain to south side of mountain chain | |
| Japanese colonial period 1900-1940 | Japanese colonial period from 1900 to 1940 | |
| Contemporary era | 1950-1970 | Existing vegetation in Bonguisan is growing well Communication reflector was installed on each 8 ridges of Bonguisan East, west, south side of Bonguisan mountain chain were damaged for some buildings were built under the Bonguisan |
| 1980-Current | There are no big change in Bonguisan vegetation and still they are growing well Communication reflector that was installed on each 8 of Bonguisan ridges was demolished Urban development is in progress around the Bonguisan Bonguisan isolation of ecology system and severance deepened | |