[pct-l] personal locator beacons

[Ken Powers]

The accuracy of maps is all in your perception.

I have been working on a detailed mapping of a long distance trail. I WAS a 
long term user of National Geographic Topo!  I used a Topo! trace of the 
trail as a start of my project. I converted it to a GPX file. Then I 
converted it to Google Earths KML file.  The program I used with my GPX file 
wasn't bad, but it still relied on human developed maps. Converting to 
Google Earth was the eye opener. Neither a trace downloaded from a newer 
GPS, nor my hand drawn trail, nor a trail drawn on a published map was as 
good as what I could draw on Google Earth.

Since then I have found other programs that use photographs of the earth for 
mapping. Almost all the programs using photos blow the old hand developed 
maps away.

Ken
www.GottaWalk.com

----- Original Message ----- 
From: <surferskir at aol.com>
To: <rgraybill44 at gmail.com>; <pct-l at backcountry.net>
Sent: Monday, March 04, 2013 1:45 PM
Subject: Re: [pct-l] personal locator beacons



I agree about the Delorme maps.  I took a trial subscription, downloaded it, 
as located an area in the Sierras I go to evry couple of years.
The trail shown wasn't even close.  I know that area very well, and their 
map wasn't even close (well it was in the same county).
As you say, their maps are worthless. I don't think they are scanned.
My National Geographic TOPO! is rigth on.  Been using it for years.

--Dennis--



List Archives:
http://mailman.backcountry.net/pipermail/pct-l/
All content is copyrighted by the respective authors.
Reproduction is prohibited without express permission.