responsibility of New Jersey Land boundaries: total 3,110 km, Burkina 126 km, Ghana 668 km, Guinea 652 km, Liberia 716 km, Mali 419 km, Mauritania 2,237 km, Niger 354 km, Sudan 605 km Coastline: 6,435 km Maritime claims: continental shelf: 200 m or depth of exploitation; specified boundary in Isfara
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