Indian River (Florida)

Indian River
Indian River at Melbourne
NASA map showing Indian River on left
Location
Country	United States
State	Florida
Physical characteristics
Source
• location	Ponce de Leon inlet
• elevation	0 ft (0 m)
Mouth
• location	St. Lucie Inlet
• coordinates	27°50′N 80°27′W / 27.83°N 80.45°W / 27.83; -80.45
• elevation	0 ft (0 m)
Length	121 mi (195 km)

The Indian River is a 121-mile (195 km) long^[1] brackish lagoon in Florida.^[2] It is part of the Indian River Lagoon system, which in turn forms part of the Atlantic Intracoastal Waterway. It was originally named Rio de Ais after the Ais Indian tribe, who lived along the east coast of Florida, but was later given its current name.

The Indian River extends southward from the Ponce de Leon inlet in New Smyrna Beach in Volusia County southward and across the Haulover Canal and along the western shore of Merritt Island. The Banana River flows into the Indian River on the island's south side. The Indian River continues southward to St. Lucie Inlet.^[3] At certain seasons of the year, bridges have tended to impede the flow of gracilaria (a red algae), resulting in an odor of hydrogen sulfide in the area.^[4]