Keya Paha River

The Keya Paha River (Template:IPAc-en Template:Respell)<ref name=pronunciation/> is a river flowing Template:Convert<ref name=NHD>U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Template:Webarchive, accessed March 30, 2011</ref> through the U.S. states of South Dakota and Nebraska.

The name is derived from the Dakota language ke'-ya pa-haTemplate:', meaning "turtle hill",<ref name=placenames/> specifically Turtle Butte.<ref>Template:Cite book</ref> The river's name was given to Keya Paha County, Nebraska, through which it flows.<ref name=KPCounty/>

The river originates in Todd County in south central South Dakota, at the confluence of Antelope Creek and Rock Creek near the town of Hidden Timber.<ref name=toddwater/> It flows in a generally southeasterly direction through Todd and Tripp counties in South Dakota and then through Keya Paha and Boyd counties in Nebraska.<ref name=GNIS/> It ends at its confluence with the Niobrara River about Template:Convert west of Butte, Nebraska.<ref name=delormemouth/> The river has a year-round flow, except for winter ice, and has a quality of water better than all other South Dakota rivers.<ref name=hogan>Template:Cite book</ref>

In 1861, the border between the Nebraska and Dakota territories followed the Keya Paha River from the 43rd parallel to the river's confluence with the Niobrara; it then followed the Niobrara to Missouri. This situation lasted until 1882 when the boundary was changed to follow the 43rd parallel all the way to Missouri;<ref name=SDGeo/> the change added portions of Keya Paha and Boyd counties to Nebraska.<ref name=boydsurvey/>

Discharge

At a gaging station south of Naper in Boyd County, the river's mean discharge was Template:Convert. The maximum mean annual discharge was Template:Convert, recorded in 1962; the minimum mean annual discharge was Template:Convert, recorded in 1976.<ref name=naperannual/> The peak flow recorded at that point was Template:Convert, registered on July 1, 1962.<ref name=napermax/> From July 22 to July 30, 1976, the discharge was recorded as zero.<ref name=naperzero/>

See also

• List of rivers of South Dakota
• List of rivers of Nebraska

References

<references> <ref name=boydsurvey>Kay, John and Mary Findlay (1988). Template:Usurped Template:Usurped Retrieved 2011-02-26.</ref>

<ref name=delormemouth>Nebraska Atlas and Gazetteer. Freeport, Maine: Delorme. 3rd edition, 2005. p. 23.</ref>

<ref name=GNIS>Template:Cite gnis</ref>

<ref name=KPCounty>"Keya Paha History". Nebraska Association of County Officials. Template:Webarchive Retrieved 2011-02-26.</ref>

<ref name=naperannual>Calculated from mean annual values for years 1958–1994 inclusive, found at "USGS 06464900 Keya Paha River Near Naper, Nebr." USGS Water Data for the Nation. Retrieved 2011-02-26.</ref>

<ref name=napermax>Peak flows for years 1958—1994 inclusive, found at "Peak Streamflow for Nebraska: USGS 06464900 Keya Paha River Near Naper, Nebr." USGS Water Data for the Nation. Retrieved 2011-02-26.</ref>

<ref name=naperzero>Daily data for July 1–August 31, 1976, found at "USGS 06464900 Keya Paha River Near Naper, Nebr." USGS Water Data for the Nation. Retrieved 2011-02-26.</ref>

<ref name=placenames>Fitzpatrick, Lilian Linder (1925). "Keya Paha County". Nebraska Place-Names. Retrieved 2011-02-26.</ref>

<ref name=pronunciation>McNally, Hannah, and Diana Lambdin Meyer (1997). Nebraska: Off the Beaten Path. Morris Book Publishing LLC. p. 81.</ref>

<ref name=SDGeo>Visher, Stephen Sargent (1918). The Geography of South Dakota. p. 11.</ref>

<ref name=toddwater>Carter, Janet M. (1998). "Water Resources of Mellette and Todd Counties, South Dakota". USGS Water-Resources Investigations Report 98-4146. Retrieved 2011-04-26. Map on p. 1.</ref>

<ref name=watershed>Seaber, Paul R., F. Paul Kapinos, and George L. Knapp (1987). USGS Hydrologic Unit Maps. U.S. Geological Survey Water-Supply Paper 2294. Cataloging unit 10150006, on p. 39. Retrieved 2011-02-26.</ref>

</references>