To answer fairly the Garmin 72sc is more of a hobby GPS. With something of that grade for GIS you can use online air photos to place features nearly as accurately.
However, for elevation you could simply use DEMS and or LIDAR generated contour lines to very closely acquire elevation. But with a lower end GPS your placement accuracy may be off.
You may want to look at something like a Trimble GeoExplorer. A budget friendly GPS unit that will result in very good accuracy.
Very many thanks Robert.
I searched through the Geo-explorer and finds it exciting. I was particularly interested in the GeoExplore 7x which appears to be the one with the highest resolution (1-100cm) in the Geoexplorer family.
However, I was wondering if same resolution is possible in the vertical dimension...i.e, will I be able to get 1-100cm accuracy when measuring elevation?? Have you used any of these before? Please, can you throw some more light.
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