TRAXmap - Sierra Leone - Zoomable and searchable digitalised maps of the country and major cities. - http://www.traxmap.com/maps/Sierra%20Leone/
University of Texas Libraries - Sierra Leone Maps - Country, city and thematic maps from the Perry-CastaƱeda Library Map Collection at the University of Texas, along with links to maps on other web sites. - http://www.lib.utexas.edu/maps/sierra_leone.html