Boats Keep Out Buoy: Marks a swimming area, an area near a
dam or any area where boats are not allowed.
Danger Buoy: Marks an obstruction, ferry cable, or any area
where boats should not navigate or should use extreme caution.
Information Buoy: Used to relay information. Words printed in
black (usually inside the border) tell place names, distances,
directional arrows, availability of supplies, gasoline, etc.
Control Buoy: Marks a restricted area such as “slow no-wake,”
“5 MPH, no skiing or no fishing.”
Mooring Buoy: Means an anchor buoy. This is the only buoy to
which a boat may tie or secure to.
Diver’s Flag: Must be used any time a diver is in the water.
Boats must not come closer than 50 feet of the flag and must
operate at a slow, no-wake speed within 200 feet.
Alpha Flag: Means a vessel is engaged in diving operations or is
restricted in its ability to navigate. Boaters must use extreme
caution and are advised to look for a diver’s-down flag.
NOTE: Markings may vary by geographic location. For example, the
Western Rivers System markers are slightly different, as well as in
different states or jurisdictions. Always consult appropriate boating
authorities before boating in unfamiliar waters.
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