This chip covers most of Ft Peck with high resolution imagery during a low water period with the Corp of Engineers original survey of the pre-inundation area giving outstanding detail of points, islands, and man made construction.
Enhanced satellite image with topo contours overlaid on an encrypted SD card for current Lowrance models.
HDS Gen 1-2-3
Elite HDI/Chirp/TI & Hook models.
Built-in Insight Maps will overlay the satellite image