Puzzle Directions: Click on a puzzle piece and drag it where you want it. When you connect two pieces correctly, they will join together. This is an extra hard double-sided puzzle. The same map is printed on both sides the pieces. Some of the pieces are turned over to the wrong side. To flip a piece over, hold down the "T" key and click on the puzzle piece. Mix up the pieces again. View finished map in pop-up window.
Description: This is a map showing how fresh water was not threatened by encroaching sea water around the year 1880. Blue is fresh water and pink is salt water. "Before the turn of the century (about 1880) fresh water flowed to the ocean through Jupiter Inlet, and fresh-water springs seeped from the ocean floor. Streamflow and the water table were high enough to hold sea water at the coast." — Florida Bureau of Geology. It is connected to a map of Palm Beach County showing encroaching sea water current to 1973 which you can find here. Please see the article Encroaching Salt Water in Northeast Palm Beach County by Harry G. Rodis for more information. Source: U. S. Geological Survey, Bureau of Geology, Florida Department of Natural Resources, Florida Bureau of Geology (Tallahassee, FL: Florida Bureau of Geology, 1973) Map Credit: Courtesy the University of South Florida Library