Millions of gallons a day of fresh water pouring out of holes in the ground, fresh water bubbling up into salt water, rivers that disappear only to pop up again a mile or more downstream - what kind of science fiction landscape is this?
It's karst, a kind of landform where the underground rock is easily dissolved by water. The word comes from a region in Slovenia called Kras that is famous for its caves.
In the ARROW region are two karst areas, one in central and eastern Wakulla County and one in northern Jackson County. There's practically no barrier between the top of the land and the water-bearing rock below. The connection between the land surface and the aquifer is direct. It's why Chad Taylor of Jackson County calls karst features "windows into the truth."
Fernald, E.A., and E.D. Purdum (eds.). 1998. Water resources atlas of Florida. Institute of Science and Public Affairs, Florida State University, Tallahassee.
Miller, J.A. 1999. Ground water atlas of the United States. U.S. Geological Survey.