Loaded with ready-to-use Nautical Charts, Navionics+ is high-definition mapping in 2-D for fresh and saltwater in the USA and Canada. With the SD card, receive a 12-month subscription to Freshest Data for updates to the Nautical Charts, SonarChart Community Edits and more. Enhance your charts with sonar log scanning, then upload sonar recordings to share detailed contours with other anglers for the freshest and most accurate data. Simply plug your chip into your PC/Mac and download the coverage you need from navionics.com. The best part is that you choose multistate coverage nationwide wherever you want until the chip is full. The 16GB chip stores both fresh and saltwater information for the USA and Canada. (Freshest Data must be started within two months of purchase.) Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Lake Map Software.