Subject: Re: [BoundaryPoint] Re: Visit to BCIDWA (and 49N 117W)<br/>
Date: Aug 01, 2004 @ 20:39<br/>
Author: Dave Patton [DCP] (&quot;Dave Patton [DCP]&quot; &lt;dpatton@...&gt;)<br/>
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<div id="ygrps-yiv-108745454">At 12:58 PM 2004/08/01, aletheiak wrote:<br/>
<blockquote><span title="ireply"> &gt;dave<br/>
&gt;<br/>
&gt;just to sum up now as much as possible<br/>
<br/>
&gt; &gt; I have sent an email to the IBC asking what version of NAD27<br/>
&gt; &gt; they have used, but haven&#39;t yet received an answer.<br/>
&gt; &gt; I assumed NAD27 CONUS.<br/>
&gt;<br/>
&gt;right<br/>
&gt;& since no news is good news<br/>
&gt;i am even more prepared now than i already was to assume this<br/>
&gt;with you too<br/>
<br/>
 </span></blockquote>I&#39;m still waiting. The person I emailed has been out of the<br/>
office. I spoke to the secretary of the commissioner last<br/>
week, and she is going to try and get the person I emailed<br/>
to contact me this coming week, after the long weekend.<br/>
<br/>
<blockquote><span title="ireply"> &gt;& so by computation<br/>
&gt;the sight line between monuments 194 & 195<br/>
&gt;crosses the meridian of the idwa marker at<br/>
&gt;nlat 48d59m57s37<br/>
&gt;wlong 117d01m52s85<br/>
&gt;also in equally significant nad27 conus<br/>
<br/>
 </span></blockquote>What program/method are you using to do the computations?<br/>
<br/>
I&#39;m still hoping that eventually I&#39;ll hear back from the<br/>
surveyor who set the LSAW plaque. He said to me on the<br/>
phone that at some point(1998?) he did the calculations<br/>
to determine the distance from the monument to the border.<br/>
<br/>
<blockquote><span title="ireply"> &gt;so true bcidwa might fall anywhere from 6 inches to 18 inches<br/>
&gt;north of this marker<br/>
&gt;<br/>
&gt;therefore<br/>
&gt;in this case<br/>
&gt;if you circled the monument at close range<br/>
&gt;as i believe you indicated you actually did<br/>
&gt;& specifically passed by just behind it here in your pic<br/>
&gt;<a rel="nofollow" target="_blank" href="http://www.confluence.org/photo.php?visitid=8945&pic=2">http://www.confluence.org/photo.php?visitid=8945&pic=2</a><br/>
&gt;you couldnt have failed to have made your point class b<br/>
<br/>
 </span></blockquote>Yes, I walked &#39;all around&#39; the monument, more than once,<br/>
as I took notes, pictures, and video.<br/>
<br/>
<blockquote><span title="ireply"> &gt;until the ibc either improves their coords<br/>
&gt;to thousandths of a second<br/>
<br/>
 </span></blockquote>Aside from the datum issue, if the IBC website coordinates<br/>
are indeed official, then by implication the thousandths<br/>
of a second are already known - either they are shown on<br/>
the IBC website listing, or they are zero.<br/>
<br/>
<blockquote><span title="ireply"> &gt;or else cleans up the clearcut enough to actually make all 3<br/>
&gt;monuments intervisible<br/>
&gt;as i believe they theoretically should be<br/>
<br/>
 </span></blockquote>Due to the topography of the area you will never be able<br/>
to see BCIDWA from monument 195, but monument 194 is to<br/>
the west, up on a ridge, and from there you may be able<br/>
to see both BCIDWA and monument 195. My photos show the<br/>
ridge as seen from both BCIDWA and monument 195, but<br/>
I don&#39;t know exactly where monument 194 is located, so<br/>
it might, for example, be possible to see 195 from 194,<br/>
but not see BCIDWA.<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>