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Course Outline

Inland Waters Obstruction Markers are white with red vertical stripes and indicate an obstruction to navigation. You should not pass between these buoys and the nearest shore.

Inland waters obstruction marker

Mooring Buoys are white with a blue horizontal band and are found in marinas and other areas where vessels are allowed to anchor.

Mooring buoy—sphere

Safe Channel Buoys indicate that the safe boating channel is between them. When heading upstream, green marks the left side of the channel and red marks the right.

Safe channel buoys—green and red
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