Garmin GPSMAP 640 Maps

nuMaps Lifetime Update Card, North America NT gives you the ability to download updated City Navigator North America NT maps and points of interest for the life of your compatible Garmin GPS. Does not contain any maps. Requires high speed internet access to download maps. Program entitles you to receive up to four map updates per year during the useful life for one compatible Garmin product or as long as Garmin receives map data from its current third party supplier, whichever is shorter. Not transferable to another person or another Garmin product.

(See compatible units at Garmin's website - click on Products Tab)

Provides recreational backpackers, hikers, geocachers and general outdoor enthusiasts with topographic maps for their journeys. It features digital topographic maps for the entire U.S. that are comparable to the U.S. Geological Survey's 1:100,000 scale paper maps. (See compatible units at Garmin's website - click on Products Tab) Over 4GB.