freakish situation ahead

marker & multiple visitation class a
http://www.gribblenation.com/swparoads/oct99swpa.html

zoomable map illustrating the puzzle inherent in the
point & its parts
http://topozone.com/map.asp?z=17&n=4480954&e=554176&s=25&size=l&datum=nad83&layer=DRG25
where you can see the 3 county names
allegheny beaver & washington
&
http://topozone.com/map.asp?z=17&n=4480903&e=554176&s=250&size=l&datum=nad83&layer=DRG100
where you can see the 4 township names
findlay hanover hanover again & independence

& the answer evidently depends on whether the hanover
township in beaver county & the adjacent hanover
township in washington county are a single intercounty
hanover township or 2 separate ones
http://www.city-data.com/township/Hanover-Beaver-PA.html
http://www.city-data.com/township/Hanover-Washington-PA.html
out of the several hanover townships pennsylvania
happens to have
http://www.city-data.com/township/Pennsylvania1.html

my guess is they are actually separate
however improbably
& so then yes a tertiary tripoint but a quaternary
quadripoint

a staggered split level tripoint would be far more
freakish
if not unique
but i think only a mirage in this case
& likely a nonesuch in any case

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