t 
Nd Re MR 
———À 
   
  
Supplementary 
contour 
Intermediate contour 
Index contour 
  
  
       
   
    
   
  
   
    
    
   
  
  
= .Shifting sand 
or dunes 
  
    
  
  
BLACK AND BROWN 
Levee with road 
zzz; land subject to 
= controlled 
= inundation 
BLUE WITH BLUE TINT 
  
Le — 129 : 
- m » Sound , depth 
#&-#- 2 | Submerged marsh Situ SN Sing p 
BLUE WITH GREEN TINT 
X dé = = | wooded marsh Ret A S Mangrove 
  
Exposed wreck 
  
BLACK WITH BLUE TINT 
  
   
vim 
EAU 
  
Foreshore flat 
Rock, bare or awash; dangerous to navigation 
Figure 1. 
  
  
  
   
] Gravel beach 
  
  
  
  
  
  
  
4j Sand area 
  
Intermittent streams 
Perennial streams 
——— Rock or coral reef 
Topographic map symbols for coastal zone features 
shown on U.S. Geological Survey maps.