Alapaha Rise, also known as Shelley Run, is the largest single spring in the United States. The Alapaha Rise is located in Hamilton County, Florida. It flows at an average rate of 802 cubic feet (22.7 m3) per second. It drains into the Suwannee River about 1/3 mile upstream from where the Alapaha River meets the river. It is a First Magnitude spring, with high tannin levels.[1][2]
- ^ "KARST HYDROGEOLOGY OF THE UPPER SUWANNEE RIVER BASIN, ALAPAHA RIVER AREA HAMILTON COUNTY, FLORIDA" (PDF). Southeastern Geological Society. Retrieved 18 September 2020.
- ^ "List of First Magnitude Springs of Florida". Florida Department of Environmental Protection. Archived from the original on 2011-02-20. Retrieved 18 September 2020.