--- In
BoundaryPoint@yahoogroups.com, "adamnvillani" <avillani@u...>
wrote:
> --- In BoundaryPoint@yahoogroups.com, "Lowell G. McManus"
> <mcmanus71496@m...> wrote:
>
> > The geodesic segment originally terminated at the confluence of
the
> rivers,
> > which was then somewhere in the bottoms northeast of what is now
> downtown Yuma.
>
> I believe you are correct. Checking out the City of Yuma's website
> shows some old photographs that show Fort Yuma located on the bluff
> on the opposite side of the Colorado, at the confluence of the two
> rivers. If you look at the landforms, too, it seems more likely
that
> the location of the confluence changed along the floodplain there
> rather than the low mesa the town sits upon.
>
> In other words, the line started at the confluence of the two
rivers,
> but the border started where that line crossed the Colorado.
yes that is the point & the key to your point try
as you originally expressed it in message 12573
you were interested in the confluence because you were seeking the
historic 1848canmmx1853 tripoint
& tho an errant detail in my analysis in message 12594 has been
rightly corrected
my conclusion is unchanged
2 needles in the same desert
& about your other queries here
i am sure they are both answered in the bible
which is of course out in the truck at the moment as usual
but i see lowell is trying to get thru with the answers
so i will just relax & leave this part up to him
>
> I wonder how the western end of that line was chosen. It seems
likely
> that it was just chosen as a location that allowed for the area
> around San Diego Bay to be in the USA but not much more. Seems odd
> that they didn't set the border on the Pacific at, say, the mouth
of
> the Tijuana River, which would be a couple miles north of where it
is.
>
> While we're at it, I wonder what the history of the geodetic line
> that forms the WNW/ESE southern border of Arizona/Gadsden Purchase
> is. How was it chosen? A map of Baja California shows Mexico Hwy. 2
> extending for about 15 miles WNW of the azbcso tripoint, roughly
> along the same alignment as the WNW/ESE line in question. Hmm.
>
> Adam