South Fork Republican River

The South Fork Republican River is a river that arises in Lincoln County, Colorado, United States, and flows east-northeastward for about 171 miles (275 km)[3] through Kit Carson and Yuma Counties, Colorado, and Cheyenne County, Kansas, to a confluence with the Republican River in Dundy County, Nebraska. Bonny Reservoir is located on the South Fork Republican River in Yuma County, Colorado.

South Fork Republican River
The river in Hale, Colorado.
Location
Country	United States
State	Colorado, Kansas, Nebraska
Physical characteristics
Source
⁃ location	Lincoln County, Colorado
⁃ coordinates	39°12′53″N 103°20′14″W
⁃ elevation	5,384 ft (1,641 m)
Mouth	Republican River
⁃ location	Benkelman, Nebraska
⁃ coordinates	40°02′30″N 101°31′17″W[1]
⁃ elevation	2,969 ft (905 m)
Length	171 mi (275 km)
Basin size	2,778 sq mi (7,190 km2)
Discharge
⁃ location	USGS 06827500 near Benkelman, NE[2]
⁃ average	35.1 cu ft/s (0.99 m3/s)
⁃ minimum	0 cu ft/s (0 m3/s)
⁃ maximum	6,220 cu ft/s (176 m3/s)
Basin features
Watersheds	South Fork Republican- Republican-Kansas-Missouri- Mississippi

The South Fork Republican River drains an area of 2,778 square miles (7,190 km²), including 2,106 square miles (5,450 km²), or 75.8%, in eastern Colorado, 667 square miles (1,730 km²), or 24.0%, in northwestern Kansas, and 6 square miles (16 km²), or 0.2%, in southwestern Nebraska.[4]

Use of water from the South Fork Republican River is governed by the Republican River Compact, a water agreement among the U.S. states of Colorado, Kansas, and Nebraska signed on 12-31-1942