1992 Map of Harlingen

About this map

Harlingen serves as the inland hub for this corner of South Texas, where irrigation and flood control networks like the North Floodway and Main Floodway have reshaped the coastal prairie into a productive agricultural and industrial corridor. The landscape is defined by the winding Arroyo Colorado and a dense system of resacas, including Resaca de los Fresnos and Resaca de la Palma, which historically provided vital water for settlements such as San Benito and Los Fresnos. Along the coast, the Laguna Madre separates the mainland from Padre Island, with the Intracoastal Waterway facilitating maritime transit through Port Isabel. This era is marked by the presence of the Willamar Oil Field and extensive wildlife conservation areas including the Laguna Atascosa National Wildlife Refuge, while the southern boundary follows the Rio Grande along the international border with Mexico.