Channel Crossing Daymark (Red): A sign mounted on poles in the
water or on the bank which means the channel is crossing from the
right bank to the left bank as you travel upstream.
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 re-
stricted 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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