2024 Map of South of Belle Isle

About this map

The Gulf of Mexico dominates this coastal survey, where the terrestrial landscape of Louisiana's St. Mary Parish gives way to the open waters of the Gulf. The map documents the shifting interface of land and sea, primarily defined by the tidal outlets and maritime passages that characterize this segment of the Bayou State's southern edge. This specific reach is defined by New Pass, a significant water break along the northern shoreline, and the Ann Channel further south within the open bay. These features represent critical navigational waypoints in a region where the geography is constantly reshaped by sediment and sea, providing a high-resolution look at the hydrography south of Belle Isle at the time of the 2024 survey.