Typical areas for these buoys are swim beaches and dams. This buoy is signified by an open diamond. Danger buoys mark areas that are hazardous to vessel operation. Typical areas for these buoys are submerged rocks or shoals. This buoy is signified by an open circle.
Control buoys mark areas where vessel speed or wake is controlled for safety purposes.
Some control buoys may limit water skiing or other activities. Typical areas for these buoys are around boat launches and other congested areas. This buoy is signified by an open rectangle. Informational buoys convey messages other than danger, control or restriction, which may contribute to health, safety or well-being. Marks the right side of the channel when travelling upstream.