FREE INSTITUTE OF SCIENCE 



'57 



VEGETATION OF SOUTH FLORIDA 



ELEVATIONS SOUTHEASTERLY FROM FORT MYERS TO BROWN'S STORE 



FEET 



Sea level at Fort Myers o.o 



General surface, 3 miles southeasterly 19.9 



General surface, 1 2 miles southeasterly 27.7 



General surface, 20 miles southeasterly 30.7 



General surface, 25 miles southeasterly 25- 



General surface, at Immokalee 37-7 



Water surface of Lake Trafford 20.0 



High-water mark, Lake Trafford 22.0 



General surface, 6 miles east of Immokalee 28.0 



Water surface of Okaloacoochee Slough 25.3 



Surface of land near Okaloacoochee Slough 27.0 



Surface near Rock Lake 24.0 



Water surface of lake 210 



Surface, 8 miles southeasterly from Rock Lake 21.0 



Surface, 4 miles west of Brown's store 17.7 



Surface, i mile west of Brown's store 17.0 



Extreme high-water mark of Everglades at Brown's store 16.3 



General surface of muck at Brown's store 14-6 



ELEVATIONS ACROSS THE EVERGLADES EAST FROM BROWN'S STORE 



Surface of muck, 5 miles east of Brown's store 14.0 



Surface of muck, 20 miles east of Brown's store 13.0 



Surface of rock, 20 miles east of Brown's store 8.0 



Surface of muck, 30 miles east of Brown's store 12.6 



Surface of rock, 30 miles east of Brown's store ^ 8.0 



Surface of muck, 40 miles east of Brown's store n.6 



Surface of rock, 40 miles east of Brown's store 10.0 



Ridge at Osceola's Camp 18.7 



Surface, 4 miles west of Pompano 12.3 



Surface, at Pompano n.o 



Low tide at Fort Lauderdale (one observation) 6 



Origin of Everglades. The Everglades lie in what has been called a rock- 

 rimmed basin, and a vast sink, but these expressions are probably inexact. 

 It is true that bed rock lies at or near the surface toward the edges of the 

 Everglades. Along the east side, from Jupiter River to Hillsboro River, the 

 outcrops are few. South of New River they are more numerous, and from 

 just north of Miami to Homestead, the rock forms bare areas with a maxi- 

 mum elevation of 4.5 meters (15 feet) above mean water level in the Ever- 

 glades. This series of ridges bends at the southern end of the peninsula to the 

 west forming the series of rocky Everglade keys, reaching nearly to White 

 Water Bay. South of the limestone region from Cutler on Bay Biscayne 

 around the southern end of the mainland past Cape Sable, White Water Bay, 

 Ponce de Leon Bay and the Ten Thousand Islands, there are no outcrops of 

 bedrock above sea level. On the southwestern side of the Everglades, rock 



