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Adventures in Boating - Washington Handbook Washington State Parks & Recreation

Boating Basics: On the Water
Non-Lateral Markers

Non-lateral markers are navigational aids that give information about topics other than the edges of safe water areas. The most common are regulatory markers (shown below) that are white and use orange markings and black lettering. These markers are found on lakes and rivers.

Pictures of Markers: What the Non-Lateral Markers Indicate:
Information marker: White buoy with directions inside an orange square Information: Squares indicate where to find food, supplies, repairs, etc. and give directions and other information.
Controlled area marker: White buoy with speed limit inside an orange circle Controlled: Circles indicate a controlled area such as speed limit, no fishing or anchoring, ski only or no skiing, or “slow, no wake.”
Exclusion marker: White buoy with orange crossed diamond and labeled Boats Keep Out underneath Exclusion: Crossed diamonds indicate areas off-limits to all vessels such as swimming areas, dams, and spillways.
Danger marker: White buoy with an orange diamond that warns of danger Danger: Diamonds warn of dangers such as rocks, shoals, construction, dams, or stumps. Always proceed with caution.
Safe Water MarkersSafe Water Markers Safe Water Markers are white with red vertical stripes and mark mid-channels or fairways. They may be passed on either side.
Inland Waters Obstruction Markers: Buoy with black and white vertical stripes Inland Waters Obstruction Markers are white with black vertical stripes and indicate an obstruction to navigation. You should not pass between these buoys and the nearest shore.
Mooring BuoysMooring Buoys Mooring Buoy: Another kind of buoy you may encounter is the mooring buoy. These are white with a blue horizontal band. They are usually found in marinas and other areas where vessels are allowed to anchor.
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Online boating safety handbook last modified: July 13, 2011
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