2025 Map of Pass Cavallo SW

About this map

Matagorda Island serves as the dominant landform in this coastal survey, separating the open waters of the Gulf of America from the intricate wetlands and inlets of the Texas coast. The northeastern tip of the island is marked by the Matagorda Lighthouse Cem, a site of significant genealogical interest situated near the eponymous Lighthouse Cove. This area transitions into the vital maritime passage of Pass Cavallo, which connects the expansive Espiritu Santo Bay to Matagorda Bay. The landscape is a complex of shallow water features and small landmasses including Grass Island, Farwell Island, and Vanderveer Island. Interior reaches such as Big Pocket and Mule Slough illustrate the tidal environment that has historically defined the boundary between Calhoun and Matagorda counties.