The Comite River is a right bank tributary of the Amite River

Amite River

The Amite River is a tributary of Lake Maurepas in Mississippi and Louisiana in the United States. It is about long. It starts as two forks in southwestern Mississippi and flows south through Louisiana, passing Greater Baton Rouge, to Lake Maurepas. The lower of the river is navigable...

, with a confluence near the city of Denham Springs, east of Baton Rouge, Louisiana

Baton Rouge, Louisiana

Baton Rouge is the capital of the U.S. state of Louisiana. It is located in East Baton Rouge Parish and is the second-largest city in the state.Baton Rouge is a major industrial, petrochemical, medical, and research center of the American South...

. The river is 56.1 miles (90.3 km) long. Its drainage basin

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 comprises approximately 348 square miles (901.3 km²) and includes portions of Wilkinson

Wilkinson County, Mississippi

-Demographics:As of the census of 2000, there were 10,312 people, 3,578 households, and 2,511 families residing in the county. The population density was 15 people per square mile . There were 5,106 housing units at an average density of 8 per square mile...

 and Amite

Amite County, Mississippi

-Demographics:As of the census of 2000, there were 13,599 people, 5,271 households, and 3,879 families residing in the county. The population density was 19 people per square mile . There were 6,446 housing units at an average density of 9 per square mile...

 counties in Mississippi, and East Feliciana

East Feliciana Parish, Louisiana

East Feliciana Parish is a parish located in the U.S. state of Louisiana. The parish seat is Clinton. In 2000, the population was 21,360.East Feliciana Parish is part of the Baton Rouge Metropolitan Statistical Area as well as the Baton Rouge–Pierre Part Combined Statistical...

 and East Baton Rouge

East Baton Rouge Parish, Louisiana

East Baton Rouge Parish is a parish located in the U.S. state of Louisiana. The parish seat is Baton Rouge, Louisiana's state capital. As of the 2010 census, the population was 440,171. The parish has a total area of , of which is land and is water. It is the most populous parish in the state...

 parishes in Louisiana. The river's source lies in the hills of the East

East Feliciana Parish, Louisiana

East Feliciana Parish is a parish located in the U.S. state of Louisiana. The parish seat is Clinton. In 2000, the population was 21,360.East Feliciana Parish is part of the Baton Rouge Metropolitan Statistical Area as well as the Baton Rouge–Pierre Part Combined Statistical...

 and West Feliciana

West Feliciana Parish, Louisiana

-Demographics:As of the census of 2000, there were 15,111 people, 3,645 households, and 2,704 families residing in the parish. The population density was 37 people per square mile . There were 4,485 housing units at an average density of 11 per square mile...

 parishes, and it empties into the Amite River just north of U.S. Route 190

U.S. Route 190

U.S. Route 190, also known as the Ronald Reagan Memorial Highway, is an east–west United States highway in Louisiana and Texas. It evolved from the shortest of intrastate routes in 1926 to a length comparable to a main Interstate Highway route, leading from the swamps and pine forests of...

 (Florida Blvd) near the eastern boundary of Baton Rouge.

Flooding

When violent rains that frequent the Capitol City region strike, the water that pounds the hills and piney forest in the Felicianas drains down into this usually shallow and calm river and quickly transforms it. During such flooding, the water flows southwards, sometimes flooding homes in outlying areas east of Baton Rouge. Floodwaters have been recorded to have covered Greenwell Springs Road in extreme conditions.