Subject: Re: DCMDVAN via Potomac Heritage Trail<br/>
Date: Sep 22, 2004 @ 19:12<br/>
Author: aletheiak (&quot;aletheiak&quot; &lt;aletheiak@...&gt;)<br/>
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<div id="ygrps-yiv-1976789005">--- In <a rel="nofollow" target="_blank" href="mailto:BoundaryPoint@yahoogroups.com">BoundaryPoint@yahoogroups.com</a>, &quot;bjbutlerus&quot; <br/>
&lt;bjbutler@b...&gt; wrote:<br/>
<br/>
<blockquote><span title="ireply"> &gt; We should keep an eye on the gage at:<br/>
&gt; <br/>
&gt; <a rel="nofollow" target="_blank" href="http://waterdata.usgs.gov/nwis/uv?01646500">http://waterdata.usgs.gov/nwis/uv?01646500</a><br/>
&gt; <br/>
&gt; When the level is below 2.75 feet, it might be worth a try.  Pray <br/>
 </span></blockquote>for<br/>
<blockquote><span title="ireply"> &gt; drought.<br/>
<br/>
 </span></blockquote>i can certainly understand the wisdom of praying for drought here<br/>
<br/>
& this site has again proved useful & i think will continue to be <br/>
most interesting right thru the imminent retries <br/>
both here & at mdvawv<br/>
<br/>
<br/>
btw i wouldnt mind having a similarly close gage & data bank for <br/>
mdvawv too<br/>
<br/>
& while i am dreaming<br/>
all the low water data here & there for years past<br/>
<br/>
<br/>
but anyway<br/>
as i grope for an official or at least objective standard for <br/>
establishing the low water marks at both dcmdvan & mdvawv<br/>
i increasingly wonder why you picked the precise 33 inches <br/>
above zero stage referred to above<br/>
<br/>
as opposed to say the federally official zero stage itself<br/>
for whatever authority or truth that might represent <br/>
or even might merely suggest<br/>
<br/>
or as opposed again to say any other imaginable low water level<br/>
<br/>
<br/>
<br/>
but also <br/>
as i was juggling all these increasingly complicated thoughts<br/>
& wondering if there might not be a simpler way to determine the <br/>
truest available dcmdvan & mdvawv<br/>
i recalled that the officially adopted mathews & nelson report is <br/>
predicated & based on usgs mapping <br/>
& is 99 percent in agreement with the usgs depiction of mdva <br/>
below dc <br/>
& evidently 100 percent in agreement with it above dc<br/>
<br/>
& i also recalled almost simultaneously that i was once told by a <br/>
usgs cartographer<br/>
in answer to my asking why idmtwy is incorrectly shown here<br/>
<a rel="nofollow" target="_blank" href="http://tinyurl.com/6mstn">http://tinyurl.com/6mstn</a><br/>
that the usgs is not legally responsible for the depiction of any <br/>
state lines except those of west virginia<br/>
<br/>
well i couldnt believe my ears at the time & so have never <br/>
forgotten this odd tidbit of scuttlebutt<br/>
& now cant help observing that if it is true then it would further <br/>
validate the usgs depiction <br/>
at least of mdvawv <br/>
if not also of dcmdvan by association<br/>
<br/>
but in any case the desire for simplicity as well as authority does <br/>
lead me to bypass all the above gaging considerations for <br/>
determining the true positions of these 2 tripoints<br/>
in favor of just carefully cribbing their geocoords directly from the <br/>
paper copies of the usgs topos<br/>
which <br/>
after so much has been said & done<br/>
are indeed looking not only as accurate but as definitive as can <br/>
be<br/>
<br/>
so <br/>
my reasoning continues<br/>
just using these mapped points as gps target points should at <br/>
least get us within 10 feet of the truth<br/>
<br/>
& moreover we believe we may have marker generated lines <br/>
available in both cases on which to center those 10 feet of truth <br/>
<br/>
so i think that procedure <br/>
using both gps & markers <br/>
might represent the actual state of the try <br/>
on both of these elusive points<br/>
<br/>
<br/>
& would you come with your inflatable kayak<br/>
<br/>
but it might be too crazy<br/>
<br/>
at mdvawv there are warning signs against even thinking of <br/>
going in the river</div>