Are channel markers ever lighted, and when?

• A. Some markers may be lighted, especially in critical or dangerous locations
• B. All markers are unlit at all times
• C. Only green markers are lighted
• D. Lighted markers indicate shallow water only

Answer: (A)

Markers are equipped with lights to help you navigate at night or in poor visibility. They aren’t all lit all the time, but in places where navigation is critical or hazardous—such as near shoals, bends, or busy channels—you’ll often find lighted markers. The color of a marker indicates its position in relation to the channel, but lighting isn’t limited to any specific color. So the best answer is that some markers may be lighted, especially in critical or dangerous locations. The other statements aren’t correct because markers can be lit, lighting isn’t restricted to green ones, and lighting isn’t used only for shallow-water indications.