Wacissa River

The Wacissa River is a large, spring-fed stream located in south-central Jefferson County, Florida. Its headwaters are located about a mile south of the town of Wacissa, where the river emerges crystal clear from a group of large limestone springs. From its headsprings, the river flows approximately 12 miles (19 km) south through a broad cypress swamp before breaking into numerous braided channels which join the Aucilla River a few miles further south. The river is managed by the Florida Fish & Wildlife Conservation Commission as part of the Aucilla Wildlife Management Area, and has been declared an Outstanding Florida Waterway by the Florida Department of Environmental Protection.

The springs that feed the Wacissa River emerge in a bottomland forest below the Cody Scarp, a relic marine terrace marked by a line of hills to the north. According to the Florida Bureau of Geology, the group of springs

"consist of at least 12 known springs scattered along the upper 1.5 miles (2.4 km) of the Wacissa River. Land to the east and west of the river is flat and swampy and surface elevations are little more than 3 feet (0.91 m) above river level. The area immediately adjoining the river and springs is densely forested with cypress, oak, some pine, and generally moderate undergrowth. To the north, less than a mile from the head of the river, the land becomes hilly, rising in most parts more than 100 feet (30 m) above the lowland. The river is generally clear and cool, averaging 21 °C (70 °F) ... The distribution of springs in, as well as adjacent to, the Wacissa River and the heavy surface cover of aquatic plants makes difficult to impractical the reliable measurement [of the water flow] of individual springs ... The average flow [of the river] from August 1971 through September 1974 was 389 cubic feet per second."

The flora is typical for a freshwater swamp in the deep southeast; pond cypress and bald cypress dominate the banks, followed by sweetbay, maple, sweet gum, hickories and oaks, as well as magnolias, holly, willow, and sabal palms. The water itself is heavily vegetated. The exotics, Water hyacinth and hydrilla, dominate the upper reaches of the river. The spring runs themselves are often home to pickerel weed, arrowhead, elodea and eel grass. Wild flowers are also present, including several varieties of water lilies.

...
Wikipedia