Arikaree River

Arikaree River
Arikara Fork Republican River
Arikaree River Valley at the location of the Battle of Beecher Island near Wray, Colorado
Republican River watershed; the Arikaree is in orange at far left
EtymologyArikaree for "horn"
Native nameOnonio'he (Arikara)
Location
CountryUnited States
StateColorado, Kansas, Nebraska
Physical characteristics
Source 
  locationElbert County, Colorado
  coordinates39°22′36″N 103°46′44″W / 39.37667°N 103.77889°W / 39.37667; -103.77889
  elevation5,908 ft (1,801 m)
MouthRepublican River
  location
Haigler, Nebraska
  coordinates
40°01′13″N 101°56′17″W / 40.02028°N 101.93806°W / 40.02028; -101.93806
  elevation
3,241 ft (988 m)
Length156 mi (251 km)
Basin size1,743 sq mi (4,510 km2)
Discharge 
  locationUSGS 06821500 at Haigler, NE
  average16.7 cu ft/s (0.47 m3/s)
  minimum0 cu ft/s (0 m3/s)
  maximum17,000 cu ft/s (480 m3/s)
Basin features
Tributaries 
  leftNorth Fork Arikaree River - Black Wolf Creek
WatershedsArikaree-Republican-Kansas-
Missouri-Mississippi

The Arikaree River /əˈrɪkəri/ is a 156-mile-long (251 km) river in the central Great Plains of North America. It lies mostly in the American state of Colorado, draining land between the North and South Forks of the Republican River, and it flows into the North Fork in Nebraska after flowing a short distance through Kansas. It is a designated area within the Colorado Natural Areas Program to protect native and uncommon species that may be endangered or threatened.

The Arikaree river is shrinking due to groundwater pumping to a degree much greater than the recharge rate of the Ogallala Aquifer, upon which the Arikaree River is fed. It is expected that the Arikaree river will dry about one-half mile by 2045.