Hapuakohe Range of hills is aligned north-south, between the Waikato River and the Hauraki Plains in the Waikato region of New Zealand. It is separated from the Taupiri Range by an air-gap at Mangawara, where the Waikato flowed about 20,000 years ago. The range is drained by the Waitakaruru and Whangamarino Rivers and their tributaries at the north end. Further south, tributaries of the Piako River drain the east side of the range and streams flow to the Waikato on the west.