Iowa River

Iowa River
The Iowa River upstream of Marshalltown, Iowa
Map showing the Iowa River (to the left) and its tributary the Cedar River
Location
StateIowa
Physical characteristics
Sourceconfluence of East Branch Iowa River and West Branch Iowa River
 • locationBelmond
 • coordinates42°51′38″N 93°36′50″W / 42.860524°N 93.6138214°W / 42.860524; -93.6138214
MouthMississippi River
 • location
near Toolesboro
 • coordinates
41°9′38″N 91°1′26″W / 41.16056°N 91.02389°W / 41.16056; -91.02389
Length323 mi (520 km)[1]
Discharge 
 • locationOakville, Iowa
 • average14,109 cu/ft. per sec.[2]
Basin features
River systemMississippi River
Tributaries 
 • leftSwisher Creek, Cedar River
 • rightEnglish River

The Iowa River is a tributary of the Mississippi River in the state of Iowa in the United States. It is about 323 miles (520 km) long[3] and is open to small river craft to Iowa City, about 65 miles (105 km) from its mouth. Its major tributary is the Cedar River.

  1. ^ U.S. Geological Survey Geographic Names Information System: Iowa River
  2. ^ "Iowa River". USGS.
  3. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed May 13, 2011