correction
the source of the gambia is even above senegal
in guinea actually
but you know what i mean
--- In
BoundaryPoint@yahoogroups.com, "aletheiak"
<aletheiak@y...> wrote:
> arif
> i too believed in this arc report about easternmost gmsn
> & may even have been responsible for starting the rumor about
it
> but i have been unable to substantiate it
>
> this border is set at a fixed distance from the river on both
sides
> presumably from both its banks rather than from its thalweg
> just like the manh state line is offset from the merrimack
> except doubly so
> as you probably also realized
> & can see here
> http://www.lib.utexas.edu/maps/africa/gambia_pol88.jpg
>
> however
> as beguilingly arclike as all this may seem
> such a regime would not actually presuppose any true arcs at
all
>
> except
> i would agree
> conceivably a single one centered at the headspring
>
>
> however
> the source of the gambia river is not in gambia
> but in senegal
> as you can also see in the above map
> & therefore the simple offset regime couldnt project such a
> simple terminal arc sector
>
> only by varying the apparent regime & reducing it to a single
> offset center point in the middle of the river
> could such a final true arc have been produced
>
>
> also the map doesnt show any such terminal rounding or
bulge
> as one would expect in such a case
> but quite the contrary
> something more like a foreshortening or truncation
> of the basic regime
> & indeed it makes the cutoff point look quite arbitrary & artificial
> & somehow distinctly at odds with the basic offset regime
>
>
> so at this point i think the existence of an arc on gmsn hasnt
> been & probably wont be demonstrated
> & was just a wishful thought & misconception in the first place
>
>
> mind you
> i dont actually know how the gmsn border does accomplish
this
> remarkable turnabout at its east end if not in some
> approximation of an arc or arcs
>
> & i can still imagine how it might somehow involve a true arc or
2
> based at some known terminal cross section of the river
>
> but i dont believe there is any text that specifies to this effect
> nor any map that suggests it
>
>
>
> meanwhile
> i have scoured the ghost frgb lines of the period
> & have discovered nothing new
> so our world class border arc census is again stalled
> at a top count of about 20 now & perhaps forever
>
> --- In BoundaryPoint@yahoogroups.com, Arif Samad
> <fHoiberg@y...> wrote:
> > Not sure, but isn't there some (at least one arc) in
> > the border of Senegal and Gambia. As far as I
> > thought, the Easternmost point is directly east of the
> > Center of the arc in that border.
> > Arif
> >
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > New and Improved Yahoo! Mail - 100MB free storage!
> > http://promotions.yahoo.com/new_mail