1974 Map of Fourleague Bay

About this map

Point Au Fer Island dominates this mid-1970s orthophotomap, revealing a coastal landscape defined by shifting marshlands and industrial incursions. Located at the intersection of Atchafalaya Bay and Fourleague Bay, the terrain is a complex network of waterways including Mosquito Pass and the winding Wildcat Bayou. The map illustrates the 20th-century extraction economy through the extensive Mosquito Bay Gas Field and numerous offshore platforms, while maritime navigation is marked by the Mosquito Point Light and Oyster Bayou Inner End Light. The transition from the open waters of the Gulf to the sheltered interior of Bay Castagnier and Lake Chapeau is captured through high-altitude aerial photography, providing a clear record of the Louisiana coastline before decades of significant erosion and land loss.