Moreau River (South Dakota)
Template:Short description Template:Use American English Template:Infobox river

The Moreau River (Lakota: Hiŋháŋ Wakpá) a tributary of the Missouri River, approximately Template:Convert long, in South Dakota in the United States. Moreau River has the name of a pioneer trader.<ref>Template:Cite book</ref>
It rises in two forks in northwestern South Dakota, in the Badlands of Butte and Harding Counties. The North Fork rises approximately Template:Convert northeast of Crow Buttes. The South Fork rises approximately Template:Convert west of the headwaters of the North Fork. The two forks flow ESE and unite near Zeona in southern Perkins County. The combined stream flows east, past Usta, and across the Cheyenne River Indian Reservation, past Iron Lightning, Thunder Butte, Green Grass and Whitehorse. It joins the Missouri in Lake Oahe, with the lower Template:Convert of the river forming an arm of the reservoir.
The river generally parallels its neighbor Template:Convert to the north, the Grand River, running from west to east to join the Missouri. Draining the Pierre Hills and Northern Plateaus, the Moreau (formerly Owl River) has a drainage basin of approximately Template:Convert. The Moreau River also has Sand Creek as a source, along with the North and South Forks, and claims several tributaries, such as the Little Moreau, Deep, Red Earth, Antelope, and Thunder Butte Rivers.<ref name=hogan>Template:Cite book</ref> At Promise, the river averages a flow of Template:Convert.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Variant names
According to the Geographic Names Information System, it has also been known historically as:<ref name="GNIS"/>
- Big Owl River
- Cerwercerna River
- Hinyankaga
- Main Owl River
- Mistai'yohe
- Murow Creek
- Owl River
- Sur war har na ha River
See also
References
External links
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