Definition
Shoreline maps are the graphic representation of planetable and photogrammetric surveys. The maps contain graphic data relating to the shoreline, alongshore natural and man‑made features, and a narrow zone of natural and man‑made features inland from the shoreline. The original sources of a shoreline map are ground survey data and photographs. Utilizing these sources, photogrammetric map compilation techniques, and instruments, cartographers generate shoreline maps, overlays, and associated data. The data are primarily generated to support nautical chart maintenance, new nautical chart construction, and hydrographic survey operations.