Port Isabel, Texas
…at 26°4'25" North, 97°12'48" West (26.073675, –97.213234), on the western side of the south end of Laguna Madre, an estuary of the Gulf of Mexico. The Queen Isabella Causeway crosses Laguna Madre to South Padre Island on the Gulf shore. To the southwest it is 23 miles (37 km) to Brownsville, the Cameron County seat. According…