Garmin GPS Sample Data loads for memory cards
Sample data loads
Mapsource’s Metroguide Software covers the entire USA. The USA is divided
up into 7.5Mb to 8Mb “zones”. These zones are pre-determined.
You can’t load a partial zone. So a 16Mb datacard will hold two Metroguide
zones. A 32Mb datacard will hold four zones. A 128 Mb datacard will hold
about 17 zones. There is a new 256Mb datacard, for SPIII and GPS276c ONLY.