Magellan MapSend North U.S.A. Lakes Freshwater Map microSD Card Provides detailed fishing hot spots maps for the northern U.S. Features lakemaster contour maps for the northern states Basemap containing roads, highways and thousands of additional lakes, reservoirs and waterways Provides extensive searchable points of interest (POI) from the U.S. Geological Survey Pre-loaded on an SD memory card, ready for use in your Magellan SD-card compatible GPS receiver