A depiction of the geographic features of a significant body of water situated between Ontario, Canada, and Michigan, USA, serves as a navigational and informational tool. This visual representation delineates shorelines, water depths, channels, and potentially points of interest such as marinas, islands, or fishing locations within the specified aquatic environment. For example, a chart might illustrate the shipping lanes used by freighters traversing the waterway or pinpoint shallow areas hazardous to smaller vessels.
Such cartographic representations provide vital support for recreational boating, commercial shipping, and ecological studies. Historical versions offer insights into changing water levels, shoreline erosion, and the impact of human activity on the ecosystem. Contemporary iterations benefit from advanced surveying techniques, providing highly accurate data crucial for safe navigation and resource management. These also aid in understanding the interconnectedness of the Great Lakes system.