Question 367Navigation General

The correct answer is A) crossing daymark. Under the U.S. Aids to Navigation System on the Western Rivers, a red diamond-shaped panel with small, red reflector squares in each corner on the left bank indicates a crossing daymark. This marker is used to identify the location of a submerged cable, pipeline, or other hazard that crosses the waterway. Boaters are advised to exercise caution when approaching this type of marker to avoid potential hazards. The other options are incorrect because: B) cable crossing is not a recognized aid to navigation term, C) special purpose signal is a different type of marker used for specific purposes, and D) passing daymark is used to indicate where boats should pass on the right side of the river.