A compact, powerful navigation system that combines simplicity with advanced chartplotting and optional HD Digital™ fishfinder technology. Each A60 is supplied with Navionics Silver cartography, covering all continental US coastal areas, Great Lakes and the Bahamas on a single, pre-programmed cartridge. Simply place the high capacity Navionics Silver CompactFlash card in the A60 and detailed marine charts are at your fingertips. Detailed chart presentation with tides, currents, shaded depth contours, navigation aids, spot soundings and more.