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At 345 feet (105 m) above mean sea level, Britton Hill in northern Walton County is the highest point in Florida and the lowest known highpoint of any U.S. state. [3] Much of the state south of Orlando is low-lying and fairly level; however, some places, such as Clearwater, feature vistas that rise 50 to 100 feet (15 to 30 m) above the water.
In South Florida, sea levels have already risen several inches since the start of the century and could be around six feet higher by 2100. But another factor could be making those sunny day floods ...
MountainPeaks.net.Mountainpeaks.net, 2011. Retrieved 2011-01-29. Notes: All Northern Florida Highlands peaks and Brooksville Ridge peaks except Citrus County High Point, Frazee Hill, Oak Hill, Pasco County High Point (Unnamed peak near Jessamine Lake Northeast), and Unnamed Peak southeast of Brooksville
Sea floor patterns of Florida Bay are formed by currents and winds. However, since 1932, sea levels have been rising at a rate of 1 foot (0.30 m) per 100 years. [81] Though mangroves serve to build and stabilize the coastline, seas may be rising more rapidly than the trees are able to build. [82]
Maps show the areas impacted by storm surge, rainfall levels and more as Helene, once a major hurricane and now a tropical storm, moves inland from Florida's Gulf Coast over Georgia.
This map made by the U.S. military shows the term "Everglades" was in use by 1857. The first written record of the Everglades was on Spanish maps made by cartographers who had not seen the land. They named the unknown area between the Gulf and Atlantic coasts of Florida Laguna del Espíritu Santo ("Lake of the Holy Spirit"). [3]
The Florida peninsula appeared above sea level between 100,000 and 150,000 years ago. As sea levels rose at the end of the Wisconsin ice age , the water table appeared closer to land. Lake Okeechobee began to flood, and convection thunderstorms were created. [ 13 ]
In addition to its coastal habitats, Florida has a variety of wetland habitats, such as marshland, swampland, lakes, springs, and rivers. Florida's largest river is the St. Johns River. Florida's largest lake, Lake Okeechobee, flows into the Florida Everglades, [5] a two-million acre subtropical wetland. [6]