Subject: Re: [BoundaryPoint] baarle monumentation<br/>
Date: Mar 15, 2001 @ 22:58<br/>
Author: Brendan Whyte (&quot;Brendan Whyte&quot; &lt;brwhyte@...&gt;)<br/>
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<div id="ygrps-yiv-998928873"><blockquote><span title="ireply">&gt;but still<br/>
&gt;since you also seem to be indicating that there are no intervisible<br/>
&gt;monuments available for chalk stringing or cross eyeballing the point<br/>
&gt;i would like to lay a very expensive gps receiver on that stake<br/>
&gt;& compare its experimentally determined position to your legally fixed <br/>
&gt;coords<br/>
&gt;down to  what was it  hundredths or thousandths of a second<br/>
&gt;which frankly i missed the last time you gave them<br/>
&gt;because i didnt think they would be as necessary as i now realize they are<br/>
&gt;so perhaps you or someone can come up with them again<br/>
<br/>
 </span></blockquote>I have the coordinates in the Dutch and Belgian national grids to the <br/>
nearest cm. The Dutch cadaster admits that the on the ground accuracy is <br/>
probably to the nearest 5 cm or so.<br/>
I do not have a lat/long. You would need to obtain a conversion in that <br/>
regard fomr either of the national survey or mapping authorities<br/>
topografische dienst in Emmen, Holland<br/>
Institut Geograhique National in Brussels<br/>
or either country&#39;s Kadaster<br/>
<br/>
Otherwise unless your GPS can handle international coords, you are restcited <br/>
to approximating the lat/long from a 1:10 000 map  fomr either country, <br/>
which will not give you such decent accuracy, probably in the vicinity ot <br/>
10m (1mm on the map).<br/>
<br/>
Remember that there is not survey point on the ground, but with surveying <br/>
equipment you might be able to recreate the pint to the nearest cm by <br/>
calculations fomr the nearest survey point. But again, these are in the <br/>
naitonal grids, not lat/long.<br/>
If the trip is in Sept, there migght be corn in all the field too...<br/>
<br/>
not to darken your day, but the national coords are in the egroup archie in <br/>
an earlier post, and I don&#39;t havethe lat/long.<br/>
Sorry.<br/>
B<br/>
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