LARSON Bass - Markers

NAVIGATION RULES AND AIDS
© 2003-2018 Ken Cook Co.
SECTION
6
Bass l 6 - 9
MARKERS
Seven (7) types of markers are used to assist the boat operator:
• Regulatory
•Range
•Special
• Lateral
• Safe Water
• Preferred Channel
•Isolated Danger
Regulatory Markers
Regulatory markers are used to display information or indicate danger. Regulatory
markers can be fixed visual markers or anchored floating buoys.
Fixed visual markers are usually white with orange geometric shapes that display
information. Anchored floating buoys are white cylinder-shaped buoys with orange
bands at the top and orange geometric shapes that may display information.
Following are the various orange geometric shapes used on these markers:
• Diamond – Indicates danger
• Diamond with cross marks inside – Indicates that a boater must keep
away
• Circle – Indicates a controlled area or speed limit
• Square – Displays important information
Range Markers
Range markers have many color schemes, may have numbers or letters and may
be lighted or unlighted. They are placed in pairs within close distance of each other.
They are commonly used in channels to guide boats safely through the center or
safe line of navigation. Keep range markers visually in line with each other while
navigating the waterway to avoid obstacles or other invisible dangers.
CONTROLLED
AREA
DANGER
BOATS
KEEP OUT
INFORMATION
KC-0244C-A