Cartography is defined as the art and science of mapmaking. Expert cartographers and engineers develop Garmin topo maps into digital form and adapt them to Garmin GPS devices. Garmin GPS maps are some of the most detailed and accurate in the industry, since they are frequently improved.
There is software available for purchase to update your Garmin GPS device. Check Garmin’s website often for the latest information to upgrade your GPS unit’s base map data and improve your overall navigation capabilities.