BlueChart g3 HD – HXAF003R – Western AfricaCoverage:General coverage of the west coast of Africa from El Aaraich, Mor. to Cape Cross, Nam., including Abidjan, C.I., Douala, Cam. and Luanda, Ang. Included in this overall general coverage are a number of detailed charts covering areas such as Casablanca, Mor., Dakar, Sen., and Lagos, Nig. Also includes general coverage of St. Helena Is., Ascension Is., and the Azores. Also includes detailed coverage of the Madeira Islands, Canary Islands, and Cape Verde Islands.Our Advanced Chart OfferingDerived from official charts and private sources to provide navigational aids, spot soundings, depth contours, tides and currents, and detailed harbors and marinasDepth Range Shading for up to 10 depth ranges enables you to view your target depth at a glanceUp to 1-foot contours provide a more accurate depiction of the bottom structure for improved fishing charts and navigation in swamps, canals and marinasShallow Water Shading feature allows for depth shading at a user-defined level to aid in navigationAdvanced Chart DetailDetailed charts help the mariner guide their boat in and out of port with confidence.Depth Range ShadingDisplays high-resolution Depth Range Shading for up to 10 depth ranges so you can view your designated target depth.Detailed ContoursBlueChart g3 HD features 1-foot contours that provide a more accurate depiction of bottom structure for improved fishing charts and enhanced detail in swamps, canals and port plans.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.