Re: convert GIS maps to Garmin format?
- From: Phil Wheeler <w6tuh-ng4@xxxxxxxxx>
- Date: Tue, 22 Nov 2005 16:22:10 GMT
iamtonyz@xxxxxxxxx wrote:
I do not know the format of the USFS maps... I am new to all this digital cartography. But there is digital vector maps for California online http://casil.ucdavis.edu/mapsurfer/ for example.
HTH, thanks for the response. I didn't realize that was the situation vis-a-vis USFS vs Garmin. But when I look at my USFS map, I see much more detail wrt fireroads... e.g. 7N35 markings... I see none of that on the Garmin map, and good detail on the USFS map.
Am I missing something??
If by "Garmin map" you mean the 24K Topo series, they are based on USGS 7.5' (24,000:1) maps .. which do not show the USFS road number info. I believe the same is true for the less-detailed Garmin US Topo (which are similar to 100,000:1 USGS topos in detail.
OTOH .. the USFS maps do not show elevation contours, at least the ones I have do not.
USFS and USGS seem to live in different worlds. I once reported a lost hiker (later found) to the Forest Service in terms of approx Lat-Long (since I was carrying a GPS) and they said that meant nothing to them, that I would have to provide the road number as in 7N35 :)
Phil .
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