10


 20
MILES


25


30


35


40


Profile A-A' across the upper Everglades Agricultural Area showing the original
surface elevation in 1912 and the ground elevation in 1940, from topographical
surveys. Profiles for the years 1970 and 2000 are estimated. (Modified from
Stephens and Johnson, 1951).


A


C)
00


20

18


-J 16
 16

(n
 14
z
4
< 12

w 10
A--

z 8
z
o 6
>-
> 4
IJ
-1
L.J


A'


 GROUND ELEVATIONS 1912 (ORIGINAL CANAL SURVEYS)

 I--^ -


 ,.~I. GROUND ELEVATIONS 1940 (SCS SURVEYS)

-.S AND:'.

 ESTIMATED GROUND ELEVATIONS 19TO



 ESTIMATED GROUND ELEVATIONS 2000


 I ROCK)
 u cr I, ROCK 


 ui 4 0 > c
 x a. z


Figure 18.


w
C
m



'1

m
0
I-
0
0<


v


F


LLI
>
|, 1