The New 2009 LakeMaster® ProMap Michigan product contains 85 High-Definiton inland lake maps, many with one-foot contours plus Great Lakes charts for Western Lake Superior (Apostle Islands to Duluth Harbor), all of Lake Michigan and all of Green Bay!! Product also contains over 2,500 enhanced lake maps with detailed shoreline, depth contours, islands, boat ramps, and more. Also contains general road and lake coverage statewide to get you to & from the lake. Product is available in Garmin® MapSource CD-ROM, pre-programmed data card, or microSD card formats.