1951 Map of Martello Castle

About this map

Martello Castle stands as a lonely landmark overlooking the expanse of Lake Borgne, marking the strategic coastal defenses of the St. Bernard Parish and Orleans Parish boundary. This mid-century survey captures a complex delta landscape where the freshwater drainage of the Lake Borgne Canal and the New Canal meets a dense network of tidal waterways. The mapping reveals a transition from inland marsh to open water, defined by a labyrinth of winding channels such as Bayou Bienvenue, Bayou Dupre, and Bayou Chaperon. Near the southeastern edge, Shell Beach and Bayou Shell Beach indicate the tenuous shoreline before the coastal erosion of later decades significantly altered these wetlands. The intricate system of bayous, including Grand Bayou and Mosquito Bayou, illustrates the natural hydrology of the region as it existed during the early 1950s, supporting local livelihoods centered on the gulf waters and marshes.