Garmin LakeVü g3 - LUS100F - microSD/SDLakeV g3 LUS100F microSD SD The Advanced Freshwater Fishing Map Industry leading coverage, clarity and detail with updated inland maps that feature integrated Garmin and Navionics content Coverage for more than 17,000 total lakes with up to 1 contours that provide clearer lake floor views, so you can catch more fish Auto Guidance technology quickly calculates a suggested route by using your desired depth and overhead clearance Includes Depth Range