lowell
you may well know better about louisiana & or in
general & i hope you do
but the difficulty with your florida example & perhaps
all of these you mention
since the question rightly asks & the bill you were
trying to fit is for more precision rather than just
more officialness
is that the available geocoordinates are neither
officially legal nor precise enough to be more useful
than say the actual physical landform indications we
have at czdepl
or than any other geopositional guesses for that
matter i suppose
here for example
http://www.fgdl.org/metadata/fgdc_html/cntbnd.fgdc.htm
you could probably find at least some quasiofficial
version of your & our dear glhemaokpa quintipoint
down to a best guessed square foot i believe
& despite the disclaimer 2 clicks down that says
the data included in this application are based on
interpretation of available info & shouldnt be
construed as legally binding
you might still have wanted to conclude you had
arrived at something on the order of the correct
square foot
which would be great since thats about the size of the
window you would need to stand in
for a class b try
but of course it is spurious or haphazard accuracy in
their case & they pretty well admit it
while what we are looking for is both full
authenticity & as much real accuracy as possible
& if you go to the ruling bible in this case
for the legal descriptions on which their guesses are
evidently based
http://www.leg.state.fl.us/statutes/index.cfm?App_mode=Display_Statute&URL=Ch0007/ch0007.htm
looking under glades hendry martin okeechobee & palm
beach
you find it is just an indefinite definition & a
purely hypothetical public land corner that the
quasiofficial guess is based on
& bill & i realized this too btw at the time when we
visited circa 2000
but we based our try on the geocoords we were able to
lovingly pull off the paper usgs topo
which was a similarly quasiofficial & similarly
quasireliable source
we knew full well
but again it was all we had to go on at the time
& certainly good enough because this was in the days
of selective availability
& even the 2 gps receivers we had on board werent
enough to be absolutely sure we had the correct
integral degminsec or 100 foot square
so when we crossed our fingers & dropped our buoy
there
it was not only the state of play for glhemaokpa at
the time but the state of the art for civilian
multipoint buoy emplacement in general i think
& no matter that our buoy cable had another 20 feet of
play in it too
nor that it was probably too frail to survive the next
cold front
let alone a hurricane
& perhaps if we went back today with 2 gpsrs & a fresh
buoy & cable & cinderblock
we could hit the likeliest 10 foot square
thanx just to the loss of selective availability
but i think based on the above data we could not at
all yet hit the correct or even the likeliest square
foot
nyonqc is a whole nother matter
but the end result looks pretty much the same from
here
in fact after years of research & a personal visit try
there too
i have still not yet able to confirm that the turning
point number 1 shown here
http://topozone.com/map.asp?z=18&n=4983683&e=525991&s=50&size=l&u=6&datum=nad83&layer=DRG25
& geopositioned here
http://www.internationalboundarycommission.org/coordinates/SECT-K-83.txt
is legally nyonqc
but as you see
it is legally specified by the ibc only to the nearest
degminsecdec or 10 foot square
so we are at best no better than the middle of lake
okeechobee without a buoy in the middle of the saint
lawrence & i suspect in the middle of lake
pontchartrain too
but if it turns out the usgs is wrong about nyonqc
there
which is somewhat likely since i cant find the really
pertinent canadian confirmation
& some canadian maps disagree
then we apparently have even less refinement to our
nyonqc coords
whatever they may prove to be based on & ultimately be
this question of the true nyonqc location btw is an
interesting one in its own right
in case anyone can help answer it
but in any case
does any of this precision gap even matter in the 3
locations you are talking about
of course not practically
except perhaps when one is making a multipoint visit
try
& then one is trying ones very best on principle
presumably
but even then the governing limitations are built into
the situation as usual
since you can do no better than whats possible
whatever that might be
but at czedpl it appears the very probably correct
square foot is not only possible
but fairly easily reachable & doable
indeed there one might even fancy & try to wheedle the
correct square decimeter
--- "Lowell G. McManus" <
mcmanus71496@...> wrote:
> Since the CAUS international boundary in the St.
> Lawrence River is reduced to straight lines and
> turning points, the New York-Ontario-Québec tripoint
> should fit the bill. The famed county quintipoint
> in Lake Okeechobee, Florida, and the lesser-known
> parish quadripoint in Lake Pontchartrain, Louisiana,
> might also be examples, albeit in wide lakes rather
> than streams.
>
> Lowell G. McManus
> Leesville, Louisiana, USA
> ----- Original Message -----
> From: Hugh Wallis
> To: BoundaryPoint@yahoogroups.com
> Sent: Tuesday, December 06, 2005 9:01 AM
> Subject: RE: [BoundaryPoint] Re: special congrats
> may be in order for czdepl improvement
>
>
> Just curious - given the uncertainty about the
> exact location expressed in your analysis, Mike, how
> would you determine/measure "success" when you say
> "i can only look forward all the more eagerly to our
> first amphibious try here because there is now every
> reason to make one & expect it will be successful "
>
> This raises the question of whether you or anyone
> else here are aware of any similar wet tripoints
> being defined legally in some more precise (and
> stationary) manner such as by means of providing
> Lat/Long coordinates according to some datum (as
> distinct from your speculated method in this case
> involving fluvial mid lines which necessarily will
> change over time) ?.
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