Subject: Re: [BoundaryPoint] Re: TopoZone - Washington quad county point
Date: Apr 15, 2002 @ 16:58
Author: David Mark (David Mark <dmark@...>)
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Thanks, Jack, this IS an instance of what I was looking for, although I
was imagining 4 ridges coming to a peak, and not two ridges and two
course lines coming to a saddle.

There is a theory of continuous, smooth surfaces laid our by Alred Cayley
in 1859, and the famous physicist James Clerk Maxwell in 1870, that shows
that at any saddle point (such as Naches pass), there in fact are two
course lines that must emanate from the exact point of the saddle, as well
as two ridge lines running up to peaks. According to that theory this
should indeed be a perfect quadripoint.

Cayley, A., 1859. On contour lines and slope lines. Philosophical
Magazine, 18, 264-268.

Maxwell, J. C., 1870. On hills and dales. Philosophical Magazine, vol. 40,
421-427.

For far more on this topic, see the appropriate section in
http://wings.buffalo.edu/philosophy/faculty/smith/articles/topography.pdf

David

On Sat, 6 Apr 2002, acroorca2002 wrote:

> jack
> apologies
> as my library computer was shooting blanks that day
>
> but i think the message was simply that even if kikipiya isnt a
> perfect fiat quadripoint there might still be a washington statute
> that makes it a legal quadripoint
>
> & probably nobody but us would think of drawing such fine
> distinctions anyway
> so lets not write it off yet from our list of true megapoints
>
>
> also in the unlikely event that it or they are marked
> i still doubt anyone would think of erecting 2 monuments
> especially on public land & in such a remote place
> when even a small marker would probably suffice to physically cover
> both points so close together
> if they are even distinguishable
> which they probably arent
>
> all in all a pretty ridiculous situation
> & i am sure glad we discovered it
>
> m
>
> --- In BoundaryPoint@y..., "Jack Parsell" <jparsell@n...> wrote:
> > Michael,
> > I agree that it is not highly probable that there is a little pool
> > of water in the pass with the water having difficulty deciding
> > which way to descend, although I've seen that in the Adirondacks.
> > The distance between the 4920 ft. contour lines on each side of the
> > pass is less than 200 ft. and the drainages line up
> cartographically,
> > but I guess a single precise point is too much to hope for. It
> looks
> > like pretty rough terrain with 2000 ft gain in elevation from the
> > nearest paved road so I don't plan to check it out. It would be
> > nice to know though.
> > Jack
> >
> > -----Original Message-----
> > From: acroorca2002 [mailto:orc@o...]
> > Sent: Wednesday, April 03, 2002 5:18 PM
> > To: BoundaryPoint@y...
> > Subject: [BoundaryPoint] Re: TopoZone - Washington quad county point
> >
> >
> > jack
> > i still like this just as much but my nearsightedness had missed
> the
> > fact that these are 2 opposite watersheds descending from that pass
> > for i was imagining it was just one river running thru a gap
> > oops
> >
> > now that you have said this tho
> > i have to think a purely fiat quadripoint is technically as
> unlikely
> > here as on that mountaintop in france without a little fudging or
> > coaxing
> > because it is almost inconceivable that 2 sawanaboris should ascend
> > to meet at a single precise point along a crest line
> > but they would by their nature produce 2 distinct fiat tripoints
> > however close together
> > m
> >
> > --- In BoundaryPoint@y..., "Jack Parsell" <jparsell@n...> wrote:
> > > This quad-county point of King - Kittitas - Pierce - Yakima
> > > counties is at N 47 05' 14", W 121 22' 42" at Naches Pass at
> > > about 4920 ft. National Forest Development Rd.#70 from Naches
> > > Pass Campground runs to within a little over a mile from the
> > > quad-point. The Naches Trail and a jeep road cross the pass and
> > > the Pacific Crest trail passes about 1/2 mile west. It appears
> > > the King-Kittitas and Pierce-Yakima lines are on a ridge. The
> > > King-Pierce line is the beginning of Meadow Creek drainage and
> > > the Kittitas-Yakima line is the beginning of Middle Fork Little
> > > Naches River drainage. Thus it is an intersection of a ridge
> > > line and two drainages all of which are natural features.
> > > I belive that is what David was looking for.
> > >
> > > Jack
>
>
>
>
>
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