[pct-l] Props to Halfmile - Nice Job!

Halfmile halfmile at pctmap.net
Mon Feb 18 22:54:59 CST 2008

Interesting plots Bearcan't.

FYI, section H is the only section so far, where the distances
measured by my GPS came up longer than the Databook mileage. As was
discussed on the list a few weeks ago the other sections measured 2 -
3% shorter.

When calculating the halfmile waypoints I compensated 2 -3% so the
distances would more closely match the Databook.

I did not apply any kind of distance compensation to Section H, since
I think it is likely/maybe longer than the Databook says. At least
that was my logic when I was making that map.

You can see in your charts how the distances in Section G more closely
match the Databook because of this.


On Feb 15, 2008 1:03 PM, Rob Rathmann <carcinomad at gmail.com> wrote:
> Spent some time comparing the GPS waypoints posted by Halfmile
> (http://www.pctmap.net/) to the official Data Book points.
> They match up rather well - elevations are spot on, distances are off,
> but not by much.  Here are a couple of screenshots:
> Section H:  http://www.bearcant.org/SectionH.jpg
> Section G:  http://www.bearcant.org/SectionG.jpg
> Nice job Halfmile!
> One step closer to a 'unified' plot of the pct, combining all
> available data sources...
> bearcan't
> --
> my 2005 walk from mexico to canada: http://bearcant.org/
> my photos: http://www.pbase.com/carcinomad/
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