The Garmin Minnesota LakeMaster v3 ProMap data puts the Land of 10,000 Lakes at your fingertips. With amazing bottom detail and threefoot contours, Minnesota LakeMaster v3 is sure to help you key in on prime fishing locations in Minnesota. Minnesota LakeMaster maps contain highdefinition contours, structures, and bottom information created from meticulous onthewater surveys. Lake detail includes islands, reefs, points, bays, access points and more. Your Garmin GPS will accurately place your boat on the map as well as show detailed tracklines and waypoints. Minnesota LakeMaster coverage includes detailed maps for 58 of the most popular lakes in Minnesota plus general coverage for another 600 Minnesota lakes