Garmin MapSource U.S. Recreational Lakes Central U.S. Freshwater CD-ROM (Windows) Provides detailed lake maps that include depth contours, boat ramps, fuel mile markers, hazards, marinas, campgrounds Contains general Interstate, highway country roads and lake data for the Central U.S. Trip and waypoint management function transfers waypoints, routes and tracks between your Garmin GPS and your PC Suggests fishing areas and seasonal catching strategies Provides detailed shoreline information for most lakes in the Central U.S.