This street map of Conakry has two scales. 1:10 000 for the city centre, and 1:15 000 for the vicinity. It was published in 1982 by the Institut Géographique National, of France, in collaboration with its Guinean counterpart.
Conakry 1 (1:10 000) 
Conakry 2 (1:15 000)
Several other maps of Conakry can be downloaded from TROPICARTA (requires Chomikuj account).