Subject: Re: [BoundaryPoint] Re: stretching the quest for a real stretchable latex tripoint to stretch
Date: Sep 24, 2006 @ 22:59
Author: aletheia kallos (aletheia kallos <aletheiak@...>)
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> I found my notional tripoint south of the airport byhttp://www.confluence.org/confluence.php?lat=32&lon=-94
> using a one-foot
> ruler and a map on which Bayou Pierre Lake and the
> 32° x 94° confluence
> are eleven inches apart. I then found the
> Sabine-Red drainage divide
> along the ruler. How near the notional tripoint
> lands to the airport,
> though, depends on the precise termini of the
> northern geodesic of the
> Neutral Ground [NG]. Let's see if we can refine
> those termini. In
> doing so, we must realize that the descriptions that
> we have are more in
> the way of allocation than of delimitation.
>
> Haggard's rendering of General Salcedo's description
> of the eastern
> terminus reads: "...along this bayou to the west
> bank of Bayou Pierre
> Lake at Bayou Pierre settlement." Since the BP
> settlement was an extant
> community, and inhabitation of the NG was to be
> prohibited, the clear
> intent is that the NG would extend up the bayou to
> the BP settlement but
> would not include it. Indeed, the BP settlers
> stayed put through the
> era of the NG, and the joint US-Spanish military
> expedition designed to
> rid the NG of illegal settlers did not molest them.
> So, wherever we
> eventually decide the BP settlement was, the
> terminus must be just
> downstream of it. I have some clues as to the
> settlement's location,
> but those require additional digging before they are
> ready for prime
> time. Stay tuned.
>
> Haggard's description of the geodesic and its
> western terminus, which he
> attributes to Davenport, is thus: "The northern
> boundary of the Neutral
> Ground was a straight line running in a
> southwesterly [southwestward]
> direction from the Bayou Pierre settlement to a
> point crossed by the
> thirty-second parallel of north latitude and the
> intersection of the
> ninety-fourth degree line of longitude and the
> Sabine River." I knew
> all along that the parallel, the meridian, and the
> river did not meet at
> a single point. That would be near impossible. As
> your rude awakening
> showed, these three lines intersect at three
> distinct points within a
> two-mile radius. Since the wording does not admit
> of perfect
> reconciliation, we must do the best we can. The
> most obvious choice is
> to use the degree confluence point (
>
> ) and thenhttp://www.topozone.com/map.asp?lat=31.99994&lon=-93.99999&s=200&size=l&u=6&datum=nad83&layer=DRG
> stitch to the river by prolongation along the same
> bearing. There might
> be other solutions, such as using a point
> mathematically intermediate
> between the three points, then a stitch to the
> nearest point on the
> river.
>
> Lowell G. McManus
> Leesville, Louisiana, USA
>
>
>
> ----- Original Message -----
> From: "aletheia kallos" <aletheiak@...>
> To: <boundarypoint@yahoogroups.com>
> Sent: Sunday, September 24, 2006 1:05 AM
> Subject: Re: [BoundaryPoint] Re: stretching the
> quest for a real
> stretchable latex tripoint to stretch
>
>
> > thats comforting
> > & i would like to learn your method of getting
> there
> > too
> > even as i clownishly extemporized my own landing
> at
> > the airport runway crossing
> > for i could just as easily have picked anywhere
> else
> > within this best guessed square mile or so of
> target
> > area too
> >
> > but i have just realized there is an inconvenient
> fact
> > or 2 to dispose of first
> >
> > for it turns out there actually is no trijunction
> of
> > the 32nd parallel & 94th meridian with the sabine
> > river
> > oops
> > nor even with the entire toledo bend reservoir
> that so
> > enlarges that general target area for us today
> > oops again
> > & in fact there is nothing even remotely
> resembling
> > such a trijunction there
> >
> > for the cursor cross on this map marks the exact
> > n32x94w point
> >
>
> >http://www.topozone.com/map.asp?lat=32.10587&lon=-93.55704&s=200&size=l&u=4&datum=nad27&layer=DRG
> > & thus there is actually 2 or 3 miles of play here
> at
> > the west end of haggards arbitrary closing line
> > to perfectly match the 2 or 3 miles of play we
> have
> > already found in bayou pierre lake at the east end
> of
> > it
> >
> > so there isnt really a closing line possibility at
> all
> > yet but rather only a very crude 2 or 3 mile wide
> > closing strip from end to end
> >
> > but
> > if we can somehow manage to shrink the width of
> that
> > strip down to the thickness of an actual line
> > then i believe i have discovered a workable
> > methodology for nailing the tripoint
> > using the google earth measuring line tool in
> > combination with the mouse pointer altitude
> registry &
> > the contour feature etc
> >
> > i even went so far as to begin my measurement on
> > chicot island here
> >
>
> > since it is the only named feature in the lakehttp://www.topozone.com/map.asp?lat=32.11972&lon=-93.55324&size=l&u=4&datum=nad27&layer=DRG25
> area on
> > google earth & it does rather nominate itself as
> the
> > grand central terminal of that entire neighborhood
> >
> > the first attachment shows my first try with the
> start
> > of this line
> >
> > for of course the rude awakening didnt occur to me
> > until i tried to end this line on the sabine at
> > n32x94w
> > hence no attachment to show the other end just yet
> >
> > but in the meantime a second inconvenient fact
> arose
> > which is that the only obvious site for a
> settlement
> > on bayou pierre lake is along the shore due west
> of
> > chicot island
> > where a cemetery & present settlement etc are
> still
> > indicated
> > & which thus might only be partly included in the
> > neutral ground by a closing line begun from chicot
> > island
> >
> > so clearly my closing line would be better to
> include
> > all of that shore
> >
> > so i thought again & selected instead of this
> island
> > the northernmost point of the lake for the
> beginning
> > point of my improved closing line
> > as shown by the cursor cross here
> >
>
> > as well as by the little red starting square in my=== message truncated ===
> > second attachment
> > with the idea in view of solving the messy
> conundrum
> > on the sabine river end of the closing line by
> > choosing the correspondingly northernmost feasible
> > point there too
> >
> > & i suppose i should ask you first if there isnt
> some
>