| 1 | The Mongolian nationality was one of the main nationalities in Rehe area. | |
| 2 | In the northeast corner, located Qing spring, it is the famous Rehe spring. | |
| 3 | Stage C is "the dormant of volcanic activity and the development of Jehol biota"; | |
| 4 | Huang Jixing, of the origin of Jianchang of Rehe, is a Professor, member of China Poetic Academy, research fellow of China Poetry Culture Research Institute. | |
| 5 | Stage D is "the volcanic exhalation and the catastrophe of Jehol biota"; |
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