It has been unsealed. The Caohe River in Houzhoukou, Wang Lou is in the normal management area, so the Caohe River in Houzhoukou, Wang Lou has been unsealed. Zhoukou City, called "Longdu" in ancient times, is a prefecture-level city under the jurisdiction of Henan Province. It is located in the southeast of Henan Province, in the hinterland of Huanghuai Plain, with Fuyang City in Anhui Province in the east, Luohe City and Xuchang City in the west and Zhumadian City in the south.