One of the first maps of Freetown

A map of the mouth of the Sierra Leone River, orientated with north to the right. marking the positions of Granville Town, the first colony founded by the 'Sierra Leone Company' in the area (1787) and the second, more successful site of Freetown (1792). An inset shows the layout of the streets; a coastal profile illustrates the approaches, The map was published three years after the foundation of Freetown, in ''An Essay on Colonisation Particularly Applied to the Western Coast of Africa'', by Swedish abolitionist Carl Bernhard Wadström (1746-99). In this work he argued that a colony would profit more from trade with the locals than exploited them as slaves.