Each piece has a slot (the groove) cut all along one edge, and small outcrop (the tongue) on the opposite edge. Two or more pieces thus fit together.
... 1.0 km² (0.4 mi²) of it is water. The total area is 6.21% water. Demographics As of the census of 2000, there are 16,146 people, 5,480 households, and 4,197 ...