Water Flowing Upward Phenomenon. The Water Flowing Upward Phenomenon was originally an agricultural irrigation ditch, about 1.8 kilometers from Dulan. The Water Flowing Upward Phenomenon was originally an agricultural irrigation ditch, about 1.8 kilometers from Dulan. It gained fame because a slight difference in terrain creates an illusion that water flows upward, and a stone tablet inscribed with "Phenomenon" has been erected beside the ditch.
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