Ninnescah River

Ninnescah River
Ninnescah River at Peck, Kansas
Map of the Arkansas River watershed including the Ninnescah River
Location
CountryUnited States
StateKansas
Physical characteristics
Source confluence 
  locationSedgwick County, Kansas
  coordinates37°34′05″N 97°42′19″W / 37.56806°N 97.70528°W / 37.56806; -97.70528
  elevation1,302 ft (397 m)
MouthArkansas River
  location
Sumner County, Kansas
  coordinates
37°19′17″N 97°09′59″W / 37.32139°N 97.16639°W / 37.32139; -97.16639
  elevation
1,152 ft (351 m)
Length56 mi (90 km)
Basin size2,129 sq mi (5,510 km2)
Discharge 
  locationUSGS 07145500 near Peck, KS
  average522 cu ft/s (14.8 m3/s)
  minimum0.2 cu ft/s (0.0057 m3/s)
  maximum33,700 cu ft/s (950 m3/s)
Basin features
Tributaries 
  leftNorth Fork Ninnescah River
  rightSouth Fork Ninnescah River
WatershedsNinnescah-Arkansas-
Mississippi

The Ninnescah River is a river in the central Great Plains of North America. Its entire 56.4-mile (90.8 km) length lies within the U.S. state of Kansas. It is a tributary of the Arkansas River.