Tracks are a very important tool to learn in your new handheld GPS unit. they can be used to find your way out of the bush or just to calculate the area of a field. You can even make your own maps with tracks. Here is an introduction to tracks on the GPSMap 78 series made by Garmin.

Product Detail
Manufacturer: Garmin
Type: Outdoor GPS
Model: 010-00864-01
SKU: 78MAPS
UPC: 753759100919

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