Sud Department topographic maps

The island is about 8 miles (13 km) long and 2 miles (3.2 km) wide, with an area of 20 square miles (52 km2). The western end of the island has rolling hills with elevations as high as 490 feet (150 m) with several small swamps in the valleys; the eastern side of the island is swampy, and contains a lagoon…

Average elevation: 2 m

Average elevation: 22 m

Average elevation: 70 m

Average elevation: 48 m

Average elevation: 283 m

Average elevation: 83 m

Average elevation: 181 m

Average elevation: 315 m

Average elevation: 37 m

Average elevation: 343 m

Average elevation: 592 m

Average elevation: 37 m