Anderson River (Indiana)

Anderson River
A covered bridge over the river, along the Perry/Spencer county line
Physical characteristics
Source 
  locationJohnson Township, Crawford County, Indiana
  coordinates38°18′57″N 86°36′51″W / 38.3158333°N 86.6141667°W / 38.3158333; -86.6141667 (Anderson River origin)
  elevation815 ft (248 m)
Mouth 
  location
Confluence with the Ohio River at Troy, Indiana
  coordinates
37°59′55″N 86°48′34″W / 37.9986111°N 86.8094444°W / 37.9986111; -86.8094444 (Anderson River mouth)
  elevation
390 ft (120 m)
Length50 mi (80 km)
Basin features
ProgressionAnderson River → Ohio → Mississippi → Gulf of Mexico
GNIS ID450631

The Anderson River is a 50.4-mile-long (81.1 km) tributary of the Ohio River in southern Indiana in the United States. Via the Ohio, it is part of the watershed of the Mississippi River.

The Anderson rises in western Crawford County in the Hoosier National Forest and flows generally southwardly through southeastern Dubois County and along the common boundary of Perry and Spencer counties, east of the town of Saint Meinrad. It joins the Ohio River just downstream of the town of Troy.

Near its mouth it collects the Middle Fork Anderson River, which flows for its entire length in Perry County.