Subject: Re: [BoundaryPoint] Re: Visit to BCIDWA (and 49N 117W)<br/>
Date: Aug 06, 2004 @ 02:40<br/>
Author: Dave Patton [DCP] (&quot;Dave Patton [DCP]&quot; &lt;dpatton@...&gt;)<br/>
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<div id="ygrps-yiv-1715514185">At 01:39 PM 2004/08/01, Dave Patton [DCP] wrote:<br/>
<blockquote><span title="ireply"> &gt;At 12:58 PM 2004/08/01, aletheiak wrote:<br/>
&gt; &gt;dave<br/>
&gt; &gt;<br/>
&gt; &gt;just to sum up now as much as possible<br/>
&gt;<br/>
&gt; &gt; &gt; I have sent an email to the IBC asking what version of NAD27<br/>
&gt; &gt; &gt; they have used, but haven&#39;t yet received an answer.<br/>
&gt; &gt; &gt; I assumed NAD27 CONUS.<br/>
&gt; &gt;<br/>
&gt; &gt;right<br/>
&gt; &gt;& since no news is good news<br/>
&gt; &gt;i am even more prepared now than i already was to assume this<br/>
&gt; &gt;with you too<br/>
&gt;<br/>
&gt;I&#39;m still waiting. The person I emailed has been out of the<br/>
&gt;office. I spoke to the secretary of the commissioner last<br/>
&gt;week, and she is going to try and get the person I emailed<br/>
&gt;to contact me this coming week, after the long weekend.<br/>
<br/>
 </span></blockquote>I have spoken to both the Canadian Commissioner and Deputy<br/>
Commissioner of the IBC:<br/>
- neither one was aware that there are variations of NAD27<br/>
- neither one knows what variation the IBC website boundary<br/>
   coordinates are using<br/>
- neither one knows the answer to the &quot;straight lines vs<br/>
   curved parallels&quot; issue for the history of the boundary<br/>
   west of the Rockies<br/>
<br/>
The Deputy Commissioner confirmed that regardless of any<br/>
coordinates listed as &quot;official&quot; on their website, the<br/>
boundary is defined by the monuments.<br/>
<br/>
The Deputy Commissioner said that if a monument was destroyed,<br/>
such coordinates would be one of the last things used in<br/>
replacing the monument. They would use nearby existing<br/>
monuments, and records with information such as distance<br/>
between monuments, bearings, etc.<br/>
<br/>
I have sent another email to the Deputy Commissioner with<br/>
the datum and &#39;straight vs parallel&#39; questions, and he is<br/>
going to forward it to the US IBC office, to see if they<br/>
have any further information.<br/>
<br/>
I don&#39;t expect to hear back for a while, as both the Canadian<br/>
and US commissioners just left for a two-week inspection tour<br/>
of part of the boundary. I don&#39;t know which part of the<br/>
boundary, but they do this periodically as part of the planning<br/>
for the boundary maintenance, and they don&#39;t walk, they use<br/>
helicopters.<br/>
<br/>
<br/>
<br/>
<br/>
-- <br/>
Dave Patton<br/>
Canadian Coordinator, Degree Confluence Project<br/>
<a rel="nofollow" target="_blank" href="http://www.confluence.org/">http://www.confluence.org/</a><br/>
My website: <a rel="nofollow" target="_blank" href="http://members.shaw.ca/davepatton/">http://members.shaw.ca/davepatton/</a></div>