NAV+NO: North features: •Lake charts •One foot contours •IA, MI, MN, ND, SD and WI all in one •7,400 lakes and growing Get freshwater charts throughout the entire region. Includes more than 7,400 lakes in IA, MI, MN, ND, SD, and WI, plus all of Lake of the Woods, Rainy Lake and US waters of the region’s Great Lakes. Nautical Chartand SonarChart™ 1 ftHD bathymetry map are pre-loaded. Community Edits can be downloaded along with daily updates for one year! Simply plug your card into your PC/Mac to get the most updated charts from navionics.com. 16 GB card and USB reader included.