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Subject: Re: ANWR
From: "werainey" <>
Date: Mon, 20 Jun 2005 01:18:51 -0000
The other parameter you want to report to the park is the map 
datum you used. U.S. Topo maps are still commonly NAD 27 
CONUS (North American Datum ...Continental United States). My 
impression is at least GPS units sold in the US default to 
another datum (WGS 84), altho you can set them to convert 
screen output to NAD27 CONUS or many others.

Consumer GPS units can sometimes produce startlingly bad 
short term fixes, so a reality check via map software (e.g., 
National Geographic's Topo or several others) at the position 
you are about to report is usually educational.

The dominant GIS software parks use to map location data 
'expects' decimal degrees as input, though conversion is not a 
big deal (assuming the datum is known).

Bill Rainey

> Degrees minutes and seconds I think is the standard Dan, I 
have been using
> degrees, degree for about 8 years now and I mark all 
recordings this way, I
> think it's just a matter of preference..


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