Experience unparalleled coverage and brilliant detail on the water. LakeVü g3 Ultra inland water maps provide industry-leading coverage, clarity and detail with integrated Garmin and Navionics data, Auto Guidance technology and high-resolution relief shading. Provides industry-leading coverage, clarity and detail for more than 5,900 lakes with 1' contours that feature integrated Garmin and Navionics® dataAuto Guidance technology uses your desired depth and overhead clearance to calculate routes and show a suggested path to followHigh-resolution relief shading combines color and shadow to give you an easy-to-interpret, clearer view of bottom structure than contour lines aloneCovers more than 5,900 HD lakes with up to 1' contours, and more than 75 Garmin Elite survey lakes