Marine Navigation - Lake Depth Maps - USA - Offline Gps Nautical Charts for Fishing, Sailing and Boating!

Marine Navigation App offers access to NOAA marine vector charts, freshwater lake maps, USACE inland river maps. Only marine GPS app to have route assistance with Voice Prompts for marine navigation. * Auto Follow Mode (Course up)-Continuously updates boats location on chart- Adjustable update frequencySample Nautical Charts (please visit http://gpsnauticalcharts.com/main/folio-catalog-nautical-charts-app for complete list)SUGARLOAF KEY-KEY WESTPORT RICHEY TAMPA BAY - CLEARWATER HBREAST BAY-WEST BAY FLORIDAST JOSEPH, ST ANDREW BAYSINTRACOASTAL WATERWAY MATECUMBE-GRASSY KEYCHESAPEAKE BAY CAPE CHARLES-NORFOLK HARBORANCLOTE KEYS-CRYSTAL RIVERST JOSEPH SOUNDMIAMI HARBORMinnesota lakes - Kabetogama, Minnetonka, Waconia,Leech,Mille LacsLake Keowee,Jocassee,Hartwell,Greenwood,Lake MurrayMark Twain,Ozarks,Table RockLake St. ClairLake KentuckyKEY WEST-THE MISSISSIPPI RIVERSAN PEDRO CHANNELLAKE MICHIGAN STONY LAKE-POINT BETSIEAPALACHICOLA BAY-CAPE SAN BLASEAST CAPE-MORMON KEYCAPE HENLOPEN-INDIAN RIVER INLETCHESAPEAKE BAY CAPE HENRY-THIMBLE SHOAL LIGHTDULUTH-SUPERIOR HARBORMONHEGAN ISLAND-CAPE ELIZABETHLAKE ONTARIO - CLAYTON-FALSE DUCKS ISLLake WinnipesaukeeSAN FRANCISCO ENTRANCEMIAMI-MARATHON, FLORIDA BAYCAPE MAY-FENWICK ISLANDMISSISSIPPI RIVER-GALVESTONCAPE CANAVERAL-KEY WESTDELAWARE RIVER WILMINGTON-PHILADELPHIAFLORIDA KEYS SOMBRERO KEY-SAND KEYSAN PABLO BAYRAINY LAKE BIG ISLAND MINN-OAKPOINT ISL ONTINTRACOASTAL WATERWAY - BISCAYNE BAYEVERGLADES NTL PARK - SHARK RVR-LOSTMANS RVRMIAMI-MARATHON & FLORIDA BAYBLACKBURN BAYLAKE HURONLAKE TAHOESTRAITS OF MACKINACNORFOLK HARBOR & ELIZABETH RIVERSAN DIEGO-SANTA ROSA ISLANDDELAWARE BAYCHOPTANK RIVER CAMBRIDGE-GREENSBOROFORT LAUDERDALE PORT EVERGLADESST SIMONS SOUND-TOLOMATO RIVERCHESAPEAKE DELAWARE CANALCAPE MENDOCINOSTRAIT OF JUAN DE FUCA ENTRANCEPORT RICHEY CLEARWATER HBRPAMPANO BEACH-HALLADALE FLORIDALAKE ERIELAKE MICHIGAN INCLUDING GREEN BAYMAIMI-MARATHON and FLORIDA BAYSANTA CATALINA ISLANDAPALACHICOLA BAY-LAKE WIMICOBattery Disclaimer:Continued use of GPS running in the background can dramatically decrease battery life.