The Mangatewainui River is a river of the Manawatu-Wanganui Region of New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

's North Island

North Island

The North Island is one of the two main islands of New Zealand, separated from the much less populous South Island by Cook Strait. The island is in area, making it the world's 14th-largest island...

. An upper tributary of the Manawatu River

Manawatu River

The Manawatu River is a major river of the southern North Island of New Zealand.The river has its headwaters to the northwest of Norsewood in the Ruahine Ranges of southern Hawke's Bay. It flows initially eastward before turning south-west near Ormondville, flowing 40 km before turning...

, it flows generally southeast from its sources in the Ruahine Range

Ruahine Range

The Ruahine Range is one of several mountain ranges in the North Island of New Zealand which form a ridge running parallel with the east coast of the island between East Cape and Wellington....

 northwest of Norsewood

Norsewood

Norsewood is a small rural town in the Manawatu - Wanganui region of New Zealand's North Island. It is situated in the Tararua District. Its population is 330....

, and meets the young Manawatu River eight kilometres east of Dannevirke

Dannevirke

Dannevirke , is a rural service town in the Manawatu-Wanganui Region of the North Island, New Zealand. It is the major town of the administrative Tararua District, the easternmost of the districts in which the Regional Council has responsibilities...

.

The Mangatewainui River should not be confused with its northern neighbour, the Mangatewai River

Mangatewai River

The Mangatewai River is a river of the Manawatu-Wanganui Region of New Zealand's North Island. It flows generally east from the Ruahine Range to reach the Tukipo River five kilometres north of the township of Takapau....

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