Which type of buoy represents the right edge of the channel when heading upstream?

The red cone buoy is used to mark the right edge of the channel when heading upstream. In the context of the U.S. Aids to Navigation System, buoys and markers are color-coded to help boaters navigate waterways safely. When moving upstream, the convention is that red markers, which are often conical in shape, should be kept on the right side of the vessel. This system helps to establish a clear path for vessels, ensuring they stay within the navigable channel and avoid hazards.

The other buoy types do not serve this specific purpose. For example, the green cylindrical buoy is actually used to indicate the left side of the channel when traveling upstream, while blue horizontal buoys typically signify non-navigational hazards or special areas. White safe water markers generally indicate that there is safe passage ahead and do not designate channel edges. Understanding these markers and their meanings is essential for safe boating navigation.