Subject: Re: frederick md
Date: Oct 15, 2004 @ 18:10
Author: aletheiak ("aletheiak" <aletheiak@...>)
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> The different colored areas of the PDF map (dark purple, green,yellow, blue)
> represent different geologies within the watershed. The lightpurple lines are
> the county and state boundaries. The white area is outside thewatershed.
>The map shows
> The watershed, of course, is bounded by the natural ridge line.
> that the light purple Frederick-Washington county boundarydeviates eastward
> from the natural watershed boundary as it approaches the MDPAstate boundary.
> Note that the watershed boundary does indeed continue northwardinto
> Pennsylvania as it should. Yes, there is a slight jog at thestate boundary,
> but there is also a slight jog in the geologies at the stateboundary. These
> jogs are probably artifacts of slightly discrepant geological datafrom the two
> states. The deviation of the county boundary from the naturalridge line while
> still within Maryland, however, is not a mapping accident. It isconfirmed by
> the text reference to the "very small portion of WashingtonCounty" that is
> within the watershed.boundary, which seems
>
> The USGS map at http://tinyurl.com/5jme6 shows the county
> to be too far west as judged by Mike Donner's on-site observationof a "shiny
> round topped stone post" that he took for the tripoint. Note thatthe USGS does
> show that monument but doesn't think it the tripoint. (I'mwithholding judgment
> until Mike tells us what it said on that monument, if anything.)The USGS map
> does not specifically show the drainage divide, but carefulinspection of the
> contours will prove that the divide must strike the MDPA boundarywest of the
> depicted county boundary. The divide runs approximately along thenorth-south
> road through the community of Blue Ridge Summit, Pennsylvania. Ifyou will pan
> the map one iteration northward, you will see that the divide runsto the small
> hill just southeast of Monterey, then ascends Monterey Peakfarther north.
> is not in keeping with the trend of the county boundary as itstrikes MDPA.
>
> Lowell G. McManus
> Leesville, Louisiana, USA
>
>
> ----- Original Message -----
> From: "Michael Kaufman" <mikekaufman79@y...>
> To: <BoundaryPoint@yahoogroups.com>
> Sent: Monday, October 11, 2004 12:06 AM
> Subject: Re: [BoundaryPoint] frederick md
>
>
> >
> > In the map in the pdf - is the left edge of the purple
> > area supposed to be the ridge? If it is it goes
> > straight north. But the USGS ridge line and supposed
> > county border slants northeast; it most closely mimics
> > the purple county boundary in the pdf map. I think if
> > the TP marker were on the pdf it would still fall east
> > of the purple line.
> >
> > --- "Lowell G. McManus" <mcmanus71496@m...> wrote:
> >
> > > At http://tinyurl.com/5jpd4 there is an 18-page PDF
> > > of a technical study of
> > > water availability in the Monocacy River watershed,
> > > which lies east of the Blue
> > > Ridge divide in Maryland and Pennsylvania. The
> > > second and third sentences of
> > > the document state:
> > >
> > > "This drainage area includes significant portions of
> > > Frederick County, Maryland;
> > > Carroll County, Maryland; and Adams County,
> > > Pennsylvania. It also includes a
> > > small portion of Montgomery County, Maryland; a very
> > > small portion of Washington
> > > County, Maryland; and Franklin County,
> > > Pennsylvania."
> > >
> > > That "very small portion of Washington County"
> > > proves that the
> > > Frederick-Washington boundary must necessarily stray
> > > east of the actual drainage
> > > divide. A watershed map on page 3 of the PDF shows
> > > such deviation at the
> > > boundary's north end as it reaches its tripoint with
> > > Pennsylvania. This
> > > probably somehow accounts for the discrepancy that
> > > you noted on the USGS map.
> > >
> > > Washington County was created from Frederick County
> > > in 1776, and their common
> > > boundary was surveyed in 1824. Field notes of the
> > > survey are listed in the
> > > on-line catalog of the Maryland State Archives.
> > >
> > > Lowell G. McManus
> > > Leesville, Louisiana, USA
> > >
> > >
> > > ----- Original Message -----
> > > From: "aletheiak" <aletheiak@y...>
> > > To: <BoundaryPoint@yahoogroups.com>
> > > Sent: Saturday, October 09, 2004 11:04 AM
> > > Subject: [BoundaryPoint] frederick md
> > >
> > >
> > > >
> > > >
> > > > fresh virgin multipoint today class a
> > > >
> > >
> > http://topozone.com/map.asp?lat=39.72417&lon=-77.47167
> > > > where the mason dixon line crosses the blue ridge
> > > > tho i only just realized they even do cross
> > > > yikes
> > > > at the interstate tricounty point of franklin
> > > county pennsylvania
> > > > with frederick & washington counties of maryland
> > > > aka frfrwa or mdpa3frfrwa or technically
> > > us2mdpa3frfrwa
> > > > marked by a shiny round topped stone post in
> > > someones side yard
> > > >
> > > > & tho i cant tell whether the blue ridge itself
> > > may continue in the
> > > > scramble of mountains still farther north from
> > > here
> > > > this point does mark the northern limit of the use
> > > of the blue ridge
> > > > as a state &or county boundary
> > > >
> > > > in fact frfrwa is exactly 1 tricounty point & 1
> > > state line north from
> > > > mdvawv on the blue ridge
> > > > & all very cleanly so
> > > > seeing as the frwa county line completely
> > > transsects maryland along
> > > > the blue ridge
> > > >
> > > > all of which you can see if you zoom out
> > > >
> > > > but if you zoom in
> > > > you will find this topo is quite odd
> > > > in showing the tripoint & the marker in 2
> > > different locations
> > > >
> > > > on the ground
> > > > there is only an ordinary mdpa marker at the
> > > tripoint position shown
> > > > on the topo
> > > > but the true tripoint marker is the one shown
> > > about 50 yards farther
> > > > east on the opposite side of the road
> > > >
> > > > marker 92 still farther east is a mason dixon
> > > milestone
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
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