Lake navigation features include advanced instrumentation to gather wind speed direction, water temperature, water depth, and accurate GPS with AIS receivers(using NMEA over TCP/UDP). Fishing spots and depth contours layers are available in most Lake maps. The Lake Navigation App provides advanced features of a Marine Chartplotter including adjusting water level offset and custom depth shading. HD contour bathymetry is available on selected lake depth maps at no additional cost.
Available Fishing info on lake maps includes boat ramps, boat launches, fish attractor locations, fishing points, stream flowage lines, navigation buoys, fishing structure, hazards, depth areas & more. Marine charts app now supports multiple plaforms including Android, iPhone/iPad, MacBook, and Windows/PC based chartplotter.
Here is the list of Minnesota Lakes Maps available on iBoating : USA Marine & Fishing App.