The 2009 LakeMaster® ProMap Minnesota product contains 180 High-Definiton maps, many with one-foot contours PLUS Great Lakes chart for Western Lake Superior (Apostle Islands to Duluth Harbor) and over 3,300 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.