Area limits for an anchorage.
spoil area
anchorage area
Anchorage area
anchorage area
Yellow buoys are used to caution boats to stay away from them. They can be used to indicate that there are underwater pipes, dredged lines or a shoal area. Yellow is used as a general warning on buoys, but those that are all yellow should be kept away from.
White buoy, upper and lower orange strip horizontally, Orange zero in the center. May have the words SLOW NO WAKE.
Yellow buoys are weather stations.
Fairway buoys are spheres, pillars, or spars with red and white vertical stripes.
Non-lateral, They may notify you of regulations, like speed or no wake zones, warn of special hazards (like dams) or mark areas to stay away from, or give information,
A white buoy with a blue horizontal band indicates a mooring buoy. In many states, this is the only type of buoy to which a vessel may be tied legally.
The Breeches Buoy - 1899 was released on: USA: May 1899
A diamond on a buoy means danger or warning. If the diamond on the regulatory buoy is open, it's a warning. It may indicate the presence of a rock, dam, wreck or other danger. Usually, the danger present is indicated under the diamond. If the diamond on the regulatory buoy is crossed, it means you should not enter. It may be a swimming area (which would be a "do not enter" area for boats), rapids, or some other danger.
This is a mooring buoy or mooring ball. They are used in either a public or private capacity to moor your vessel to. In a way it acts as an anchor for your vessel. Instead of dropping an anchor though, you simply pull up to the buoy and slip on a line (rope) and make fast. It also the ONLY acceptable buoy you may do this to.