1956 Map of Port Arthur

Inland, the survey tracks the transition from the refinery-dominated coastal cities like Nederland and Port Neches to the remote, ridge-based settlements of the bayou. Significant conservation areas such as the Sabine National Wildlife Refuge and Lacassine National Wildlife Refuge are clearly delineated, protecting the marshlands between Calcasieu Lake and White Lake. Transportation is shown through the Kansas City Southern Ry and the isolated stretches of Pecan Island and Grand Chenier Ridge, revealing how geography dictated human occupation in this low-lying coastal environment.