Sierra Leone is on the West Coast of Africa. The Republic of Guinea is to the north and northeast; Liberia is to the east and southeast, and the Atlantic Ocean on the west and south. It has 402 km of coastline.
From an approximate 100-km coastal belt of low-lying land, the country rises to a mountain plateau near the eastern frontier rising 1200 m to 2000 m with an important timber forest region.
The peninsula, on which the capital and main commercial centre of Freetown stands, is 40 km long and 17 km wide with a mountainous interior.