Green River (Illinois)

Coordinates: 41°28′09″N 90°23′43″W / 41.4692011°N 90.3954067°W / 41.4692011; -90.3954067 (Green River mouth)
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Green River
Physical characteristics
Source 
 • locationReynolds Township, Lee County south of Rochelle, Illinois
 • coordinates41°51′26″N 89°05′30″W / 41.8572518°N 89.0917616°W / 41.8572518; -89.0917616 (Green River origin)
 • elevation775 ft (236 m)
Mouth 
 • location
Confluence with Rock River near Quad Cities
 • coordinates
41°28′09″N 90°23′43″W / 41.4692011°N 90.3954067°W / 41.4692011; -90.3954067 (Green River mouth)
 • elevation
558 ft (170 m)
Length89 mi (143 km)
Discharge 
 • locationGeneseo, Illinois
 • average704 cu/ft. per sec.[1]
Basin features
ProgressionGreen River → Rock → Mississippi → Gulf of Mexico
GNIS ID409398

The Green River is an 89-mile-long (143 km)[2] tributary of the Rock River in northwestern Illinois in the United States.[3] Via the Rock, it is part of the Mississippi River watershed. Much of the Green's course has been straightened and channelized.

Course[edit]

The Green rises in northern Lee County and flows initially southwestward through Lee, Whiteside and Bureau Counties, passing the town of Amboy. It turns westward in Bureau County and flows into Henry County, where it roughly parallels the Hennepin Canal and passes the towns of Colona and Green Rock. It joins the Rock River just west of Green Rock, in the Quad Cities metropolitan area.

See also[edit]

References[edit]

  1. ^ "USGS Current Conditions for USGS 05447500 GREEN RIVER NEAR GENESEO, IL".
  2. ^ 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
  3. ^ U.S. Geological Survey Geographic Names Information System: Green River