||over 34 km (21 mi)
The Hautapu River is a river in the Manawatu-Wanganui region of New Zealand. It originates from Ngamatea Swamp in the New Zealand Army's Waiouru Training area. From here it flows south, through private farmland, and in some places following State Highway 1, for several kilometres before entering the Rangitikei River south of Taihape.
The Hautapu is well regarded as a trout fishing stream. In the summer months it can hold relatively good sized brown trout that can be targeted by either dry-fly or nymphing techniques.
Coordinates: 39°45′12″S 175°50′12″E / 39.7534°S 175.8366°E