2025 Map of Decros Point

About this map

Decros Point anchors this coastal survey, marking the southwestern tip of the peninsula where the Matagorda Ship Channel cuts through the barrier island. This maritime landscape is defined by the critical transit route of the Intracoastal Waterway, which facilitates sheltered navigation along the Texas coast behind the protective dunes. The map highlights a environment shaped by coastal engineering and military presence, notably at Pierce Field, situated on the thin strip of land between the open Gulf of America and the expansive Matagorda Bay. The boundary between Calhoun and Matagorda counties bisects the bay, illustrating the administrative divisions of these vital salt-water estuaries. Researchers can trace the modern contours of the barrier shoreline and the deep-water access points that serve the region's shipping and defense infrastructure.