Manufacturer Description Garmin Navionics+ Cartography provides premium coastal and inland water detail for the Northern Portion of the United States including detailed coverage of the lakes and rivers of Iowa, Michigan, Minnesota, North Dakota, South Dakota, Wisconsin, all the Great Lakes and Lake of the Woods. to your compatible Garmin chartplotter. Integrated Garmin and Navionics content provides an all-in-one map solution for both inland and coastal waters. A updated color palette and Navionics style appearance provides unparalleled coverage and detail. Included with every Garmin Navionics+ charting is a one year subscription that includes simple access to daily chart updates* via the ActiveCaptain Smart device app. All-in-One Map Solution for Garmin Chartplotters Access detail-rich mapping of coastal features, lakes, rivers and more. Integrated Garmin and Navionics content offers coverage for boaters worldwide. Daily Chart Updates Charts are constantly being enhanced with new and amended content — as many as 5,000 updates are made every day. The one-year included subscription gives you access to daily chart updates via the ActiveCaptain app. Auto Guidance+ Technology Built-in Auto Guidance will search the attributes of all relevant charts along with frequently traveled routes to suggest the best course for navigation taking into consideration your desired safe depth and overhead clearance. Depth Range Shading Charts are constantly being enhanced with new and amended content — as many as 5,000 updaHigh-resolution depth range shading lets you select up to 10 color-shaded options and view your designated target depths at a glance. Up to 1' Contours For improved fishing and navigation, up to 1' contours provide a clear depiction of bottom structure for improved fishing charts and enhanced detail in swamps, canals, harbors, marinas and more. Shallow Rater Shading To give a clear picture of shallow waters to avoid, this feature allows for shading at a user-defined depth. Raster Cartography NOAA raster cartography is available for some U.S. waters as a free downloadable feature via the ActiveCaptain app to provide paper chart-like views on your plotter. ActiveCaptain Community Community-sourced content provides useful POIs, such as marinas, anchorages, hazards, businesses and more. Get recommendations from boaters with firsthand experience of the local environment. Check compatibility here.Features Detailed coverage of the lakes and rivers of Iowa, Michigan, Minnesota, North Dakota, South Dakota, Wisconsin, all the Great Lakes and Lake of the Woods.