Information, Danger, Controlled, and Exclusion Markers
Non-lateral markers are navigation aids that give information other than the edges of safe water areas. The most common are regulatory markers that are white and use orange markings and black lettering. These markers are found on lakes and rivers and are used to:
- Give directions and information.
- Warn of hazards and obstructions.
- Mark controlled areas.
- Mark exclusion (closed) areas.
Common Non-Lateral Markers
Squares provide information such as places to find food, supplies, and repairs; and they give directions, distances, and other non-regulatory information.
Diamonds warn of dangers such as rocks, shoals, construction, dams, or stumps. Always proceed with caution and keep a safe distance. Never assume that every hazard will be marked by a buoy.
Circles indicate a controlled area such as “no wake”, “idle speed”, speed limit, or ski zone.
Crossed diamonds indicate areas off-limits to all boats such as swimming areas, dams, and spillways.