South Georgia and the South Sandwich Islands (SGSSI) is a British overseas territory in the southern Atlantic Ocean. It is a remote and inhospitable collection of islands, consisting of South Georgia and a chain of smaller islands known as the South Sandwich Islands. South Georgia is 167.4 kilometres (104 mi) long and 1.4 to 37 km (0.9 to 23.0 miles) wide and is by far the largest island in the territory. The South Sandwich Islands lie about 520 kilometres (320 mi) southeast of South Georgia.