My Garmin Vista GPS has an annoying habit of marking my location as being off by a good distance Ex., I am on water or ice near the shore and the GPS would mark me as if I am 100 metres or more ONSHORE (which has caused my friend, after studying my GPS, to say, 'hey, did you catch fish in the forest?'
). According the website, 'The basemap in the GPS devices has been drawn from a map with a scale of 1:100,000. A level of accuracy of .25 miles (1,320 feet) can be expected from a map of this scale.' , meaning 1) most GPS would follow this logic, 2) I am doomed to mark my fish spots on the #2 road and 3) if i wanted to drop $200 for a Trakmaps contour map, I will be off by at least 1300 feet in any direction from a drop-off or shoal I wanna fish.
Do you guys have the same problem - does your GPS display this level of offset? Would the contour map correct this? I posed this problem with Trakmaps and they said, no, the problem would be related to the GPS unit. Is it still worth getting a contour map?