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Texas barrier islands
Map of the barrier islands along the Gulf Coast of Texas
Padre Island is the world's largest barrier island, with a length of 113 miles (182 km). Since 1962 Padre Island has been divided in two by the dredging of the Port Mansfield Channel roughly 30 miles (48 km) north of the south end of the island, which separated it into portions referred to as South Padre Island and North Padre Island.