Obstacles
Marine charts provide information about
the bottom and obstacles that may impede
your boating. Examples are shown in Figures
29 30
17-8a and 17-8b.
Section 17: Introduction to Navigation 193
Generally, marine charts show little
information about the land other than the
shoreline and objects that may be seen by a
boater on the water.
Figure 17-8a. Typical symbols for wrecks and obstructions (Refer to NOAA Chart 1 for additional details and information.)
Figure 17-8b. Chart segment showing rocks and hazards