What are the historical sites of Huaiyuan ancient city on the shores of Sifang Lake that coincide with the capital of Xia Dynasty?

The existing geographical landforms around Huaiyuan ancient city are consistent with the Xia Dynasty. Huaiyuan ancient city is very large in scale. Can it be used? A city of three miles, a country of seven miles? To describe it. The Xia Dynasty described in Mencius' article is highly consistent with the geographical features around Huaiyuan ancient city.

The east and west sides of Huaiyuan ancient city dug a gully that can lead to the north and south, called Xidagou and Dongdagou. The distance between gullies in these two days is about three miles. After investigating these two gullies, it can be found that they are different from ordinary artificial irrigation ditches, and their depth and width are very large, so it is impossible to know how many years they have. The ancient city of Huaiyuan is surrounded by these gullies and becomes a perfect moat system. Does this have anything to do with the description of Xia Dynasty in Mencius' articles? The city is not high and the pool is not deep. Is consistent.

The moat system designed by Huaiyuan ancient city has three functions, one is military protection, the other is water conservancy traffic, and the third is flood control irrigation. One of the functions of Dayu's newly-built Xia Dynasty was flood control. I believe everyone knows about Dayu's water control, but we only know his achievements and his spirit, but we don't know what his water control ability is.

The flood control capacity of Huaiyuan ancient city is extraordinary. Even after so many years, we can still see such a complete outline of Huaiyuan ancient city. I have to say that Dayu's flood control ability is still excellent. Generally speaking, by observing the geographical features left around Huaiyuan ancient city, we can still see the place consistent with the Xia Dynasty. ?