The river rises on the boundary between Lowndes and Echols counties at the confluence of Grand Bay Creek and Mud Creek, about 10 miles (16 km) southeast of Valdosta. The river flows southeast through Echols County, crossing into Hamilton County, Florida, around 2 miles (3 km) above its confluence with the Alapaha River near the town of Jennings.
Other names: Little River, Little Alapaha and Grand Bay Creek.
^U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National MapArchived 2012-03-29 at the Wayback Machine, accessed April 18, 2011