This Topo100_MDR file contains the DEM data for the entire coverage of TOPO2008. One thing I have noticed is that when you go into the TOPO2008 folder in C:/Garmin you will find the flat maps with topo just like the old version BUT you will also see a file called Topo100_MDR.img. My speculation is that the Colorados are "tuned" to optimally display the new DEM enabled topos with no concern to the older maps. When comparing the various topos I noticed that the old Garmin Topo maps had similar issues as described above.
That being said I don't think the issue is entirely with custom maps. The visual appearance of the major/intermediate/minor contour lines are nearly indistinguishable on the Colorado where on the 76 there are some subtle differences. On the Colorado you can see the intermediate and minor contour lines are already displayed in the first picture when they should not come on until a later zoom level (as seen on the 76 shots) OT - these screenshot REALLY exagerate the different resolutions of the two units. Both sets show the same location at the same zoom levels.
In my "First Impressions" post I mentioned there seemed to be cosmetic issues with custom maps on the Colorados - this is just a follow-up to summarize what I saw.īelow are shots of a custom map sets on both a Colorado (400t) and a GPSmap 76CSx.
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