2017 mangrove forest extent mapping data products at 20m resolution for 11 countries in West Africa created using a combination of Sentinel-2 and Sentinel-1 satellite imagery (Senegal, The Gambia, Guinea Bissau, Guinea, Sierra Leone, Liberia, Cote D’Ivoire, Ghana, Togo, Benin, and Nigeria). This dataset includes 9 GeoTIFF files (Senegal and The Gambia combined, Togo and Benin combined).