The White River is an American two-forked river that flows through central and southern Indiana and is the main tributary to the Wabash River. Via the west fork, considered to be the main stem of the river by the U.S. Board on Geographic Names, the White River is long. Indiana's capital, Indianapolis, is located along the river. The two forks meet just north of Petersburg and empty into the Wabash River at Mount Carmel, Illinois.
West Fork
thumb|left|250px|The West Fork of the White River at [[Fishers, Indiana|Fishers]]
The West Fork, long, is the main fork of the river. starts in Columbus at the confluence of the Driftwood and Flatrock rivers. The headwaters of the main stem ("West Fork") of the White River are in fact farther east than those of the East Fork. The East Fork flows a total of
Eventually, the East Fork continues eastward to its source under different names: the "Flatrock River", the "Driftwood River", and the "Big Blue River".
Lower river
Below the junction of the East Fork, the White River flows another between Gibson, Knox, and Pike counties before draining into the Wabash River at the Indiana–Illinois border next to Mount Carmel, Illinois, in the vicinity of where the Grand Rapids Dam and Grand Rapids Hotel used to exist. The total White River basin watershed exceeds .
Recreation
thumb|Kayakers on the river's west fork in Indianapolis, 2019
Many recreational activities take place on the White River, including fishing, kayaking, and canoeing. The White River Yacht Club is a boating club that utilizes pontoon boats, and a section of the river in northern Indianapolis has both riverside cottages and pontoon boats. The river is not deep enough in many stretches to support conventionally-keeled sailing or power boats.
Pollution
In 1997, the White River was listed as one of the United States’ most threatened rivers.
Pesticides (herbicides and insecticides) are used extensively in the White River basin. Application of herbicides to corn and soybeans accounts for most of the use. The pesticides most frequently detected near the mouth of the White River during 1991–1995 were the herbicides alachlor, atrazine, cyanazine, and metolachlor.
In 1999, the West Fork experienced a massive fish kill that spread for with an estimated loss of 4.6 million fish (187 tons). The kill was traced back to Guide Corp, an automotive parts maker in Anderson, which had discharged of the chemical HMP 2000 into the river. Guide Corp eventually reached a settlement whereby the company would pay a total of $14.2 million in fines, penalties, legal expenses, and river restoration. Many animals that had burrowed into the mud were protected from the chemical, and by March 2000, some fish were naturally returning to the affected area.