130


 A field survey was made of three ponds; a 1.85-acre

 (0.75 ha) pond, a 4-acre (1.6 ha) pond in the Big Cypress

 region of Hendry County, and a 31-acre (76.6 ha) pond in

 eastern Hendry County, north of the Corkscrew area in the

 sandy flatlands region. The 1.85-acre pond had a maximum

 depth of 1.50 ft (46 cm). Both the 4-acre and the 31-acre

 pond had maximum depths of 1.55 ft (47 cm). All three

 ponds conformed, more or less, to the shape of a flat-

 topped, wide-based, inverted cone with concave sides. The

 1.85 acre pond was a cypress dome. Predominate species of

.the 4-acre and 31 -acre ponds were pickerel weed,

maidencane, and other marsh plants. The 31-acre pond had a

floor of peat 6-ft thick at the center.

 Depth-area, depth-volume, and area-volume curves were

made for each pond. Depth-area and depth-volume plots for

the smaller ponds approximated exponential curves. Depth-

area and depth-volume plots for the larger pond were

straight -lines. All three ponds had a straight-line

relationship between area and volume (V = A/2) over most of

the range of water volume (Figures 26, 27, and 28).



Sloughs and Strands

 An elevation profile of an 11 mile (18 Km) strip

running east and west across the western part of the Big

Cypress (the Alligator Alley alignment) is shown in Figure

29. Wet prairie areas were approximately 1 ft higher than ----

the strands embedded in them. In some but not all strand