TOPOGRAPHY 



43 



In all cases, to clarify to the lithographer the limits of the area to be shown tinted on the 

 printed chart, the cartographer shall indicate the marsh area by a blue pencil tint on the Draw- 

 ing. Water areas of lakes and ponds shall be similarly tinted and the abbreviation "W" for 

 water shall be placed in such lakes and ponds in non-photographic blue ink. 



MANGROVE (A-7) 



The mangrove symbol is used only when the mangrove area is of small extent or when 

 the growth is a prominent featm-e. For large areas, the word Mangrove is used and repeated if 

 necessary. When the word is used, the inner limits are indicated by a thin black dashed line. 



SURVEY 



CHART 



CYPRESS (WOODED SWAMP) 



Cypress is treated in the same way as mangrove except that trees growing outside the 

 high water line are indicated by the word Trees. 



CHART 



TREES (C-5, -5a to -5f) 



Wten trees are recommended as a characteristic feature, or where they would appear to 

 be useful to the navigator (as for instance, on a sand spit where a tangent may be observed), 

 the tree symbols shall be shown on the charts. 



