[pct-l] PCT Atlas - Clarification Please

[Craig Stanton]

What's the sample rate on your GPS? If it is assuming direct lines  
between points and your points are more than say 20 seconds part,  
lots of corners get chopped off and that's where you can loose 2-3%

	
On 7/02/2008, at 5:41 PM, Lon Cooper wrote:

> It would be interesting to know how the trail was originally measured
> for the Guidbook/Databook and how accurate it is.
>
> My GPS log has the distance from the border to Scissors at 75.3 miles.
>
> My logs constantly show the trail distances 2 - 3% less than the
> databook for the 1,000 miles of trial that I have logged so far. The
> databook may be perfect and it could be something about how the
> logging on my GPS...they are pretty close.
>
> -Lon
>
> On Feb 6, 2008 7:31 PM, AsABat <AsABat at 4jeffrey.net> wrote:
>> The current (2005) data book also has mileages that differ from the
>> guidebook. The data book is considered more current.
>>
>> It will be interesting if more than one set of milepoints develops. I
>> can imagine conversations between two hikers with different sources
>> trying to explain where to meet up. Or the water report... I guess it
>> works on other trails though.
>>
>> AsABat
>>
>>> I was actually --- tentatively --- comforted by the fact that his
>> mileages
>>> are NOT identical to the Wilderness Press data.  It implies an
>> independent
>>> (and hopefully accurate) process for measuring the distances.
>>
>>
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