Floyd River

Floyd River
Confluence of the Missouri and Floyd Rivers in Sioux City
Floyd River watershed (Interactive map)
Location
CountryUnited States
StateIowa
DistrictWoodbury County, Iowa, Plymouth County, Iowa, Sioux County, Iowa, O'Brien County, Iowa
Physical characteristics
Source 
  locationO'Brien County, near Silver Ave and 290th St.
  coordinates43°14′31″N 95°37′16″W / 43.242°N 95.621°W / 43.242; -95.621
MouthMissouri River
  coordinates
42°28′59″N 96°23′31″W / 42.483°N 96.392°W / 42.483; -96.392
  elevation
1,079 ft (329 m)
Basin size2,400 km2 (930 sq mi)
Discharge 
  locationmouth
  average340 cu ft/s (9.6 m3/s) (estimate)

The Floyd River is a tributary of the Missouri River, 112 miles (180 km) long, in northwestern Iowa in the United States. It enters the Missouri at Sioux City, and is named for Charles Floyd, a member of the Lewis and Clark Expedition.