Navionics Hot Maps Platinum North U.S., multi-dimensional lake maps on CF card. Hot Maps Platinum gives you detailed maps of over 18,000 lakes with Sonar Charts and Community Edits, plus Satellite Overlay, 3D View, Panoramic Lake Photos and exclusive one foot contours on 2,500 High Definition Lakes. Spend less time searching and more time fishing! Designed with the tournament angler in mind, Hot Maps Platinum reveals lake bottom composition in one foot contours plus clearly marked road beds, foundations, bridges, brush piles, culverts, creek channels, and other underwater structure. Also find detailed coastlines including docks and boat ramp locations, Pro Staff additions, and coastal data with tides and currents. Take advantage of daily updates. Download Freshest Data free for 12 months! Update your Hot Maps Platinum after 12 months with the Save 50% program. Sonar Charts is an HD bathymetry map featuring extraordinary bottom contour detail, great for increasing awareness of shallow waters and for locating fishing areas at any depth level. For more accurate local Sonar Charts, record sonar logs and upload them to the Navionics website. Updates are available online in about one week. The more you contribute, the better the result! Coverage for Michigan, Iowa, Wisconsin, Minnesota, North Dakota, and South Dakota.