Many newer GPS units allow users to log in to an account and download different types of maps, including hunting maps. Connecting the GPS unit to a computer via USB allows the user to download hunting zone maps, which are specific zones designated for hunting large or small game.
Upon purchasing a GPS unit, users are issued an account and password with which to log in to the GPS manufacturer's site and download maps. It may be necessary to download extra software such as Garmin BaseCamp. After launching the software and downloading the map to the GPS, it needs to be installed, and the new map integrates with the rest of the data in the GPS.