1933 Map of San Luis Pass

About this map

Galveston Island terminates at its southwestern tip in this 1930s survey, where the San Luis Pass separates it from San Luis Island. This coastal geography reveals the strategic maritime positioning of the era, marked prominently by the San Luis Coast Guard station guarding the narrow inlet between the Gulf of Mexico and the calmer waters of West Bay. Compiled in part from aerial photographs taken by the Army Air Corps, the map captures the precise shoreline and tidal environment before modern developments altered the barrier island's profile. The boundary between Brazoria and Galveston Counties is clearly delineated as it cuts through the pass, providing a snapshot of the jurisdictional and physical landscape of the Texas coast during the early 1930s.