2018 Map of Freemason Island

About this map

Freemason Island appears as a isolated landform within the expansive waters of Chandeleur Sound in this Saint Bernard Parish coastal survey. This map highlights the precarious nature of the Louisiana barrier island chain, where the landscape is defined almost entirely by the interaction between sea and sediment. The vast majority of the quadrangle is open water, illustrating the significant role these marshy outcrops play as the first line of defense against the Gulf of Mexico. Researchers interested in coastal erosion or the shifting geography of the Outer Chandeleur Islands will find this 2018 record a stark contrast to historical charts, reflecting the ongoing transformation of the Louisiana shoreline.