Map of Gambia and hinterland. British settlements and slave trading localities are denoted by a red line and a green line beneath names, respectively. Note on map: "The slave trading factory in Bulama I destroyed and 206 slaves given up to the Commander of the Brisk". The map indicates tribal locations., Relief shown by hachures., The map was produced to accompany Dr Richard Robert Madden’s anti-slavery report published in: Great Britain. Parliament. House of Commons. Select Committee on the West Coast of Africa. Report : together with the minutes of evidence, appendix, and index. 1842.