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<font size="+1"><font face="Arial">One big advantage of the newer
Garmin mapping GPS is that in Yogi's planning guide has all the maps
you'll need for the entire trail, including most alternate routes.<br>
<br>
I used a Legend C last year which only held 24MB and not quite the
entire trail. It's really pretty neat locating yourself on the GPS or
on Jonathan's maps using the compass rose. A GPS probably also helps
if you need to bail without carrying larger maps.<br>
<br>
I also entered all my nightly stays, or where I left the trail to get
into town. It's cool being able to see where you stayed each night.<br>
<br>
Generally, I think a Legend Hcx or Vista Hcx would be adequate.<br>
<br>
Sly<br>
<br>
Frank Gilliland wrote:
<blockquote type="cite">
<pre wrap=""><font><font>I have a Garmin etrex Vista HCx for about a year (Used it some on a
800 mile section of the PCT this last summer). It is quite an
improvement from some old units I have used. Having removable sd
chips is a great plus.
GPS units are a great back up tool to the good old map and compass. I
really like the Ley maps use of the GPS compass Rose. This is a great
way to "Make" the GPS user also read the map. If using the Ley maps
even the simplest GPS will be of help with his use of the Rose.
The most IMPORTANT thing to always ask about when using a GPS is:
WHAT DATUM IS THE GPS SET FOR
AND
WHAT DATUM IS THE MAP USING
AND
WHAT DATUM IS THE WAYPOINT OR TRACK INFORMATION FORMATED TO
I have been finding that most problems of why the GPS is wrong has to
do with the wrong datum somewhere.
The two most used datums are:
NAD 27 This is the datum for most USGS maps and is used for the
Colorado Trail 7th ed. Guidebook.
WGS 84 This is the default setting for most GPS units and is used for
the Delorme Atlas, ( I am awaiting the new j. Ley maps, so I'm not
sure what Datum they use)
Any waypoints or tracks can be in either format. So be very careful
here.
Waypoints and tracks are for me still a work in progress in MY
learning curve, Garmin is still old school in how you can handle
data. One example is the use of POI points verses waypoints. I think
my Vista is limited to 500 loaded or made in the field waypoints.
However you can load thousands of POI points. Further you can have
only 20 track files of no more that 500 track points. It would be
nice to have as much info as the chip can handle instead of having
some set limit....
If you have any waypoint OR TRACK files out
there------------------------------> Feel free to send them to me
(ALONG WITH WHAT DATUM YOU USED)
StarMan (doing chunks of the CDT in 2009 and 2010)
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</font></font></pre>
</blockquote>
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