Subject: Re: [BoundaryPoint] Three-dimensional boundaries<br/>
Date: Nov 24, 2001 @ 20:39<br/>
Author: Anton Sherwood (Anton Sherwood &lt;bronto@...&gt;)<br/>
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<br/><br/>
<div id="ygrps-yiv-1263800439">Peter Smaardijk wrote:<br/>
<blockquote><span title="ireply"> &gt; Are there any other examples of oblique (vis-a-vis the vertical)<br/>
&gt; boundary lines?<br/>
<br/>
 </span></blockquote>Two narrow corridors of US territory near the Panamá Canal -- Madden<br/>
Road and Chagres River -- were bridged by the Boyd-Roosevelt Highway,<br/>
which (despite the name) belonged to Panamá.  The ground under the<br/>
bridge remained US territory, and the bridges were wrapped in tubes of<br/>
Panamá territory.<br/>
<br/>
	The [Colón Corridor] Convention [of 1950] provides a precise<br/>
	description of the international boundary of these intersections.<br/>
	Panama is to have sovereignty over a tube of space conforming<br/>
	exactly to the shape of the bridges, and to retain absolute<br/>
	control over traffic on the bridges.  All other sovereign rights<br/>
	are retained by the United States.<br/>
<br/>
(Scott Reid: &lt;Canada Remapped: How the partition of Quebec will reshape<br/>
the nation&gt;, Pulp Press 1992)<br/>
<br/>
<br/>
-- <br/>
Anton Sherwood  --  <a rel="nofollow" target="_blank" href="http://www.ogre.nu/">http://www.ogre.nu/</a> (online again, Nov.19)</div>