2024 Map of Freemason Island OE W

About this map

Chandeleur Sound dominates this coastal survey in St. Bernard Parish, where the seascape of the Gulf of Mexico meets the shifting marshlands of southeastern Louisiana. The expanse of water is punctuated by Old Harbor Island in the lower portion of the sheet, providing a primary reference point for this stretch of the Louisiana shoreline. The absence of roads, buildings, or infrastructure underscores the remote, aquatic character of this area, which remains defined by the natural movement of the tides and the sediment of the Mississippi River delta. This document is focused on the hydrographic and terrain boundaries of the sound as they stood in 2024, serving as a baseline for environmental changes and coastal migration in one of the most dynamic maritime regions of the United States.