Navionics Regions South Preloaded MSD Format. Navionics is a powerful electronic chart solution providing more regional marine and lakes content than other product on the market! Get detailed Nautical Chart, SonarChart 1' HD bathymetry map, and Community Edits plus dailyupdates for one year! Includes full marine coverage out to Bimini and West End, plus more than 1,400 lakes in AL, AR, FL, GA, KS, LA, MO, MS, NE, NM, OK and TX. Nautical Chart and SonarChart are preloaded. Simply plug your card into your PC/Mac to download the most updated charts and Community Edits anywhere within the entire region. 16 GB card and USB reader included. Features Marine and lake charts. One foot contours. AL, AR, FL, GA, KS, LA, MO, MS, NE, NM, OK and TX all in one. 1,400 lakes and growing. Daily updates Navionics is a powerful electronic chart solution providing more regional marine and lakes content Marine and lake charts. One foot contours AL, AR, FL, GA, KS, LA, MO, MS, NE, NM, OK and TX all in one. 1,400 lakes and growing Daily updates