Plan your path and track fish with the Garmin ECHOMAP UHG2 73cv US Inland Chartplotter. This plotter comes pre-loaded with Navionics+ data with easy-to-access maps and charts, which can be marked with waypoints and shared between devices. A GT20-TM transducer combines CHIRP and ClearVu sonar to provide crisp, high-contrast images of fish under your boat.