With LakeMaster Data Card Michigan as your guide, you'll look forward to some great days of boating, fishing and fun on Michigan lakes. With amazing bottom detail and one-foot contours for many lakes, LakeMaster Michigan is the one guide you'll never want to go without. Developed by Garmin to work in seamless integration with your chartplotter or mapping GPS, LakeMaster provides detailed lake profiles and navigation data for a long list of Michigan lakes and waterways. Cartographic features include high definition contours, structures, and bottom information created from on-the-water 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. Like to plan ahead? MapSource trip and waypoint management function lets you view LakeMaster maps on your home or office PC, and then transfer pre-selected waypoints, routes and tracks to your chartplotter or GPS. Detailed road map data is also provided to help you navigate easily from your home to the lake of your choice. LakeMaster Michigan coverage includes detailed maps for 54 of the most popular lakes in Michigan plus general coverage for another 600 Michigan lakes.