1933 Map of Carancahua Lake

About this map

Galveston Island serves as a prominent barrier against the Gulf of Mexico, its northern tip showing the transition from salt marshes into the waters of West Bay. Surveyed in 1929 and published in the early 1940s, this chart captures the intricate hydrology of the Texas coast, where Halls Bayou enters the bay near the western boundary of Galveston County. The landscape is defined by tidal inlets and shallow basins, most notably Carancahua Lake and its connecting Carancahua Bayou. A significant portion of the mainland is marked as an Unsurveyed Area, contrasting with the detailed topographic lines tracing the elevations along the bay shores. These details are particularly useful for understanding the historical shoreline and the location of Carancahua Point and the offshore Carancahua Reef before subsequent decades of coastal erosion and development.