Standard Mapping Services Classic Marine Map GPS E-Cards replace the generic basemap on your GPS and provide a world of greater detail. Standard Map Classic Package mapping cards offer high-resolution aerial imagery, local names of waterways and land features, built-in waypoints, routes and trails compatibility, and built-in navigational aids compatibility. Upgrade your mapping to upgrade your boating today. Replaces GPS basemap; High-resolution aerial imagery; Local names of waterways; Land features; Built-in waypoints; Built-in routes and trails compatibility; Built-in navigational aids compatibility;