2012 Map of Martello Castle

About this map

Martello Castle stands as a focal point in this coastal landscape of St. Bernard Parish, positioned where the industrial infrastructure of the Mississippi River-Gulf Outlet Canal cuts through the intricate Louisiana wetlands. The terrain is defined by a dense network of tidal waterways, including Bayou Bienvenue and Bayou Mercier, which drain into the expansive waters of Lake Borgne. This 2012 survey illustrates the vulnerable coastal geography of the New Orleans area, showing the direct connection between inland bayous like Bayou Dupre and the larger Gulf outlets. The map provides a detailed view of the marshy labyrinth south of the canal, where features such as Shell Beach Bayou and Mosquito Bayou weave through the fragmenting shoreline, documenting the state of the delta's hydrology in the early 21st century.