Bridges & Arches of Central Park
A
cache
by addisonbr
Hidden
:
5/31/2008
Difficulty:
Terrain:
Size:
 (Small)
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An extensive multi-cache (offset) that brings you on a tour of
Central Park's historic bridges and archways. Bring a calculator if
you intend to solve in the field!
Welcome to the Bridges and Arches of Central
Park! This ambitious challenge takes you on a grand tour of the
most famous park in the world. Central Park covers over 800 acres
of greenery and recreation areas in the middle of Manhattan, so
prepare for a long (but pleasant) walk.
Central Park is a masterpiece of urban landscaping. A key component
of Calvert Vaux and Frederick Law Olmsted's award-winning 1858
vision was keeping pedestrians, horses and (especially) vehicles
out of each others' way. These bridges and archways are the
linchpin of their "separate circulation system", brilliantly
routing various traffics around the park while often going
unnoticed by those actually traveling over or under them.
Although many of the bridges fell into disrepair as the 20th
century rolled on, the Central Park Conservancy has worked
diligently in recent times to restore them to their original
majesty. At many of the waypoints below you may find signs showing
"before" and "after" photographs of some of the more impressive
reclamation projects.
At each bridge I've asked you to find a particular number, marked
as variables A through Z and AA through FF. These numbers, when
combined in the equation at the end, will give you the final
coordinates (also somewhere in the park).
Please do not attempt this cache at night. Central Park has come a
long way from where it was 20-30 years ago, but this is still New
York and the prudent urban adventurer takes care to avoid dark,
isolated places. In addition, you'll be looking for a handful of
numbers which are almost impossible to read after dark.
I would suggest breaking this into manageable pieces and chipping
away over the course of a few trips, rather than trying to hit all
30-some stages all at once. Although the archways can be visited in
any order you choose, I've laid the waypoints out in an order I
think makes for a relatively straightforward and efficient path to
completion. I've started things at the northernmost arch in the
park - if you misjudge the time required for this challenge and
nightfall catches you, I'd prefer that you find yourself in the
southern part of the park, which has better proximity to almost
everything - people, lighting, restaurants, subways, etc.
Successful solvers will receive special,
limited-edition coins to commemorate their finds! The
design took several months to perfect, but they have finally
arrived and I can't tell you how excited I am about how they came
out. Each is marked with a serial number - the FTF will lay claim
to the coveted #1 coin. There are also trackable versions of the
same coin (that only finders may obtain) - I will be contacting
successful solvers with information on the trackables. Below is a
sample image (if you want to see a more close-up view, you'll just
have to complete the challenge):

Consider this coin a no-strings-attached gift from me to you. And
with that in mind, know that you are completely free to do whatever
you wish with it - keep it, trade it, sell it online, etc. I do ask
that you take only one gift per ID - even if you return multiple
times in the coming months to make trades or move trackable items
along, please leave the "gift coin" in place for future first-time
finishers of the multi. Thanks! (Note - if you plan to complete
this as part of a group outing, please contact me ahead of time so
that we can coordinate the appropriate number of coins, etc.)
Let's get on with the challenge! The listed coordinates are for no
existing bridge, but is the approximate spot of Central Park's
greatest loss - the Marble Arch (so named because its marble
construction stood in stark contrast to the stone and brick found
elsewhere in the park). It was demolished in 1938 to make way for
increased vehicular traffic, a mind-boggling decision with the
benefit of 70 years of hindsight. Interestingly, the pieces of the
arch are still there - they're just buried underground, near the
entrance to the Mall and Literary Walk.
Special Note - Maintenance in Central Park is constantly in flux,
and you and I may both be surprised by sudden construction or
repair that cuts off access to one or more of the arches. If we are
both caught unaware, don't sweat it! I carry the answers to each of
these stages on a laminated card in my wallet, and messages sent
via the web site are routed to my cell phone. We will be able to
work around any problems.
Extra Special Note - I am honored to report that Bridges &
Arches of Central Park has received three 2008 Awards from the
Metro New York Geocaching Society - Best Themed Cache, Nicest
Scenery / Best Hike, and most humbling of all, Cache of the Year.
Thanks so much to all who have taken the time to enjoy this cache -
here's hoping that 2009 is just as busy.

Thanks, and good luck!
1. Mountcliff Arch (1890) N 40° 48.002 W 073°
57.473
The tallest bridge in Central Park, 48 feet high, made of ashlar
and gneiss rock. A truly massive bridge that is much grander in
person than any photo will do justice.
What you need for Variable A:
Look for the black lamp post closest to the West entrance to the
arch, on the North side of the path. The lamp post has a four-digit
serial number - "A" is the second digit of this serial
number.
(Error check - it is also the same as the number of curved brick
ceiling sections under the archway.)
2. Huddlestone Arch (1866) N 40° 47.749 W 073°
57.337
Perhaps the most aggressively natural archway in the entire park,
almost looking like a cave depending on the light. Construction
plans called for collecting the largest, craziest boulders in the
park - one near the foundation is reputed to weigh approximately
100 tons (200,000 pounds).
What you need for Variable B:
On the Northern exterior of the archway (on the East side) is a
green plate with a seven-digit serial number. "B" is the sixth
digit of this serial number.
(Error check - it is also the eighth digit of the phone number on
the "North Woods" sign near the South entrance.)
3. Springbanks Arch (1863) N 40° 47.620 W 073°
57.487
Originally, the path through Springbanks Arch shared space with a
small stream. Although the stream is now rerouted beneath the
pavement, Mother Nature is not so easily deterred - during heavy
rains, especially in the springtime, rushing water often cascades
through the arch to join Montayne's Rivulet just ahead.
What you need for Variable C:
Above the Southern entrance of this archway you will notice an iron
railing featuring a number of small circles (over 100 of them). "C"
is the total of these circles.
(Error check - the total is evenly divisible by 9.)
4. Glen Span (1865) N 40° 47.688 W 073°
57.547
A walk under Glen Span is shared with Montayne's Rivulet, feeding
The Pool just to the west. Originally, Glen Span featured grand
wooden trestles above, with a wooden walk and railing, but wear led
to replacement with additional stonework in the 1880s.
What you need for Variable D:
As you exit the arch on the West, you will see a path stairway
leading up and to the Southwest. Atop these stairs is a black lamp
post with a four-digit serial number (hyphenated). "D" is the
second digit of this serial number.
(Error check - it is also the second digit of the serial number for
the lamp post atop the crude stone stairway leading up and to the
Northwest.)
5. Gothic Bridge (1864) N 40° 47.334 W 073°
57.726
The most famous and picturesque of Central Park's northern bridges.
The curved spandrels evoke graceful church architecture of the
Middle Ages. It doesn't blend in as well as other Central Park
bridges, but given its classic lines that is easily forgiven.
What you need for Variable E:
Underneath the bridge, attached to the Southern support, is a green
plate with a seven-digit serial number. "E" is the fifth digit of
this serial number.
(Error check - it is also the third digit of the serial number on
the black lamp post to the West of the bridge, on the North side of
the path.)
6. Claremont Arch (1890) N 40° 47.275 W 073°
58.023
Named for the nearby Claremont Riding Academy, whose riders would
cross the bridge to access the bridle path (Claremont was the last
riding stable in Manhattan, closing its doors forever in April
2007). Currently the path under the arch is closed to pedestrians,
a rather regrettable state of affairs.
What you need for Variable F:
"F" is the number of bollards at the top of the stairs which lead
to the Northern entrance to the arch.
(Error check - there is a black lamp post near these Northern
stairs, a few feet to the West, with a four-digit serial number. If
you divide the first digit by the fourth digit you will get a whole
number which is also equal to "F".)
7. Reservoir Bridge Southwest (1864) N 40° 47.066
W 073° 57.974
After falling into disrepair in the 1970s (did anything not fall
into disrepair in 1970s New York?), this bridge carrying Reservoir
pedestrians over the bridle path was taken apart and carefully
restored and reconstructed piece-by-piece precisely according to
the original plans.
What you need for Variable G:
Look for the black lamp post to the West of the bridge on the North
side of the path. "G" is the third digit of the serial
number.
(Error check - it is also the fourth digit of the serial number for
the black lamp post East of the bridge, on the South side of the
path.)
8. Reservoir Bridge Southeast (1865) N 40° 46.914
W 073° 57.763
Reservoir Bridge Southwests's less popular sister, possibly because
the platform is flat rather than elegantly curved like the other
cast iron bridges nearby. It's a shame, because the intricate
ornamental work deserves a better fate.
What you need for Variable H:
Look for the green plate under the bridge, attached to the Southern
Support. "H" is the sixth digit of the serial number.
(Error check - it is also the first digit of the serial number on
the black lamp post to the West of the bridge, on the North side of
the path.)
9. Winterdale Arch (1862) N 40° 46.912 W 073°
58.163
Winterdale is the widest of all of the stone/brick arches, leaving
plenty of room for both pedestrians and equestrians to share the
throughway. The cast iron railings, repeatedly damaged by
automobile accidents on the upper level, were replaced with cheap
chain link fencing during the mid/late 20th century, only to see
good sense return in the 1990s when the fencing was replaced with
new cast iron approximations of the originals.
What you need for Variable I:
Look for the green plate affixed to the Eastern face of the arch.
"I" is the fifth digit of this serial number.
(Error check - it is also the fourth digit of the serial number for
the black lamp nearest the East entrance.)
10. Greywacke Arch (1862) N 40° 46.736 W 073°
57.930
With the disappearance of Marble Arch, Greywacke is now the only
bridge in Central Park named after its construction material
(greywacke is a kind of sandstone found in the Hudson Valley). The
pointed Saracenic of the arch itself evidences a slight Middle
Eastern architectural influence.
What you need for Variable J:
On the bench nearest the East entrance to the arch, on the South
side of the path, is a plaque dedicated to the memory of Laurie.
"J" is the fourth digit of the year she was born.
(Error check - it is also the number of red brick sections running
lengthwise under the archway.)
11. Glade Arch (1862) N 40° 46.590 W 073°
57.939
This bridge owes its restoration to an out-of-control snow plow
that wiped out most of the balustrades lining its north rail in
1980. Rather than simply repairing the damage, the Central Park
Community Fund, the Greensward Foundation and the Central Park
Conservancy over the course of the 1980s restored Glade Arch to its
original, subtle elegance.
What you need for Variable K:
There is a green plate on the underside of the arch, near the West
entrance and on the North wall. "K" is the sixth digit of this
serial number.
(Error check - There is a black lamp post to the North of the
entrance to the arch on the West side of the path, with a serial
number consisting of four digits followed by a letter of the
alphabet. If you sum the first two digits of this serial number and
divide by 3, you will also arrive at "K".)
12. Trefoil Arch (1862) N 40° 46.470 W 073°
58.132
Trefoil features one of the more distinctive arch designs on its
eastern face - instead of trefoil decorations around the entrance,
the portal itself is an actual three-lobed shamrocky-thing. It is
the only archway in the park to feature asymmetrical entryways (the
west side is more conventionally round).
What you need for Variable L:
The stairs leading down to the West entrance of the arch are broken
into three flights - the top flight contains eight stairs, the
middle flight contains ten stairs, and "L" represents the number of
stairs on the bottom flight.
(Error check - it is also the fourth digit of the serial number
attached to the black lamp post at the very top of all three
flights of stairs.)
13. Terrace Bridge (1863) N 40° 46.430 W 073°
58.261
Unquestionably the most spectacular of all Central Park structures.
From the grand gestures (the famous Bethesda Fountain) to the tiny
details (staircases carefully decorated with intricate and
light-hearted stone carvings). Words don't do Terrace Bridge much
justice; plan to take some extra time when you visit and really
check it out.
What you need for Variable M:
A series of designs adorn the blind arcades underneath the bridge.
You will notice that several of these designs feature blue
diamonds. "M" is the total number of blue diamonds all throughout
these arcades.
(Error check - if you multiply the number of stairs in the center
stairway leading down into this area by 3, you will get the same
answer - "M" is a number greater than 100.)
14. Bow Bridge (1862) N 40° 46.547 W 073°
58.305
Bow Bridge is one of the most picturesque bridges in all of the
park, and doubtless the most photographed. Unlike most of the other
bridges, designed to be overlooked, Bow Bridge demands your
attention with its grace. It's close to perfect.
What you need for Variable N:
Near the Southern end of the bridge is a plaque with two dates -
the year the Bow Bridge was completed, and the year it was
restored. "N" is the third digit in the year it was restored.
(Error check - it is also the first digit of the serial number on
the black lamp post near the Southern end of the bridge, on the
West side of the path.)
15. Ramble Arch (1863) N 40° 46.703 W 073°
58.280
The Ramble Arch is the narrowest of all archways in the park,
measuring just five feet across. It has the feel of a giant
keyhole, sort of giving the pedestrian the perception of passing
into a secret world of literary enchantment.
What you need for Variable O:
Look for the black lamp nearest the Eastern entrance to the arch,
on the South side of the path. "O" is the fourth digit of the
serial number for this lamp.
(Error check - if you go to the topside and cross over the
arch instead of through it, you will see a black lamp to the South,
on the West side of the path. "O" is also the fourth digit of this
lamp's serial number.)
16. Bank Rock Bridge / Oak Bridge (1860) N 40°
46.721 W 073° 58.300
Originally a beautiful footbridge over a narrow arm of the Lake, in
1982 Oak Bridge was redesigned to be entirely utilitarian - simple
wooden planks, steel pipe railing. Boo. It is currently being
restored to its original design - the bridge itself is in back in
place after several months of work, with the ornamental railing
scheduled to be finished in 2009. Yay.
Update - The restoration is complete! And it is phenomenal! Yay
CPC!
What you need for Variable P:
Just past the East end of the bridge you'll see a green CPC
sign proclaiming an entrance to "The Ramble" in large white
letters, and displaying a detailed map of many of the paths in the
area. At the bottom of this sign is a ten-digit phone number that
begins "212" - "P" is the ninth digit of this phone
number.
Note - the above-referenced sign has been
removed. Please use the ERROR CHECK below.
(Error check - it is also the fourth digit of the serial number on
the black lamp post just past the West end of the bridge, on the
North side of the path.)
17. Balcony Bridge (1860) N 40° 46.719 W 073°
58.342
Named for the balconies (and resting spots) featured along the
eastern top of the bridge, Balcony Bridge is one of just two
intentionally asymmetrical bridges in the park (along with
Trefoil). The underpass is designed for waterway (although current
restoration of the lake may not make that obvious at first
glance).
What you need for Variable Q:
"Q" is the number of balcony sitting areas located along the East
rail of the bridge.
(Error check - it is also the last digit of the serial number on
the green street lamp (not black) on the East side of the
road.)
18. Eaglevale Bridge (1890) N 40° 46.756 W 073°
58.396
Eaglevale is the only double-arched bridge in the park, for which
you can thank the long ago presence of the Ladies' Pond. Ladies
required their own pond back then because changing into ice skates
might have shown a little ankle, and if the menfolk saw that, it
would have been crazy-times. The turret-like facades between the
arches give Eaglevale a kind of cool castle-like feel.
What you need for Variable R:
Underneath the Eastern arch, on the East wall near the North
entrance, you will find a green plate. "R" is the seventh and last
digit of this serial number.
(Error check - it is also the fourth digit of the serial number for
the black lamp at the North entrance of the Eastern arch.)
19. Riftstone Arch (1862) N 40° 46.563 W 073°
58.537
Riftstone in many ways is one of the most hidden archways in the
park. Many who pass over it are doubtless unaware that it even
exists, given its naturalistic design, the sloping nature of the
surrounding area, and the fact that both pedestrian and vehicular
traffic are routed over rather than under the bridge at the 72nd
Street entrance (the bridle path flows under).
What you need for Variable S:
On the underside of the arch, near the South entrance along the
West wall, is another green plate. "S" is the fifth digit of this
serial number.
(Error check - If you walk to the topside of this arch you will see
a large street sign for Central Park West Drive, with rush hour
traffic schedules. In the lower-left of the sign is a four-digit
number preceded by "SR-". "S" is the first digit of this
number.)
20. West 65th Street Transverse (1950s) N 40°
46.299 W 073° 58.723
There is simply no reason this bridge couldn't have been awesome.
It's in a great part of the park - near Tavern on the Green, plenty
of landscapy advantages. And no new bridges had been constructed in
the park over the previous half-century or so, so you'd imagine
that New York could create something fantastic. And yet this arch
just drips with unfulfilled potential. There's absolutely nothing
wrong with it, there's just not much that would make you want to
take a picture of it. A real shame. Where were Olmstead and Vaux
when we needed them?!? (They were both dead by then? Oh.
Sorry.)
What you need for Variable T:
You will find yet another green plate on the underside of this
archway, near the South entrance along the West wall. "T" is the
fourth digit of this serial number.
(Error check - it is also the second digit of the hyphenated serial
number for the black lamp found near the North entrance to the
arch, along the East side of the path.)
21. Dalehead Arch (1862) N 40° 46.244 W 073°
58.703
A simple, unassuming bridge with quatrefoil cutouts on the
railings.
What you need for Variable U:
Apologies for the repetition, but you guessed it - there is another
green plate on the underside of this arch, near the East entrance
along the South wall. "U" is the sixth digit of this serial
number.
(Error check - on the topside of this archway you will find
a green street lamp a tad to the South, on the West side of Central
Park West Drive. It features a five-character serial number. The
second character and fifth character are both numbers; add them
together and it will also equal "U".)
22. Pine Bank Arch (1861) N 40° 46.155 W 073°
58.737
Pine Bank was spared when other cast iron bridges along the bridle
path in the south were waylaid in favor of vehicular traffic. But
to quote the Greensward Foundation, "subsequent neglect of Pine
Bank Arch over the years almost accomplished what demolition could
do in a day". In 1984, on the verge of almost literally falling
apart, the bridge was rescued and painstakingly restored to its
previous glory.
What you need for Variable V:
As you cross this bridge topside, "V" is the number of bollards in
the *middle* of the path at each end of the bridge (not
added together).
(Error check - it is also the third digit of the serial number for
the black topside lamp to the North.)
23. Greyshot Arch (1860) N 40° 46.149 W 073°
58.785
Greyshot was one of the first bridges completed because of
anticipated traffic levels, and today it continues to anchor the
busist corner of the entire park.
What you need for Variable W:
On the underside of this arch you will find another green plate.
"W" is the fourth digit of this serial number.
(Error check - it is also the number of small circular drainage
holes set along the bottom edge of each side of the archway
- not added together.)
24. Dipway Arch (1862) N 40° 46.051 W 073°
58.686
The quality of the granite used in Dipway's construction (from
Rackcliff Island near Seal Harbor, Maine) has led this bridge to
weather the elements better than any other in the park. Even the
original railings have survived to this day, despite the heavy
traffic of Center Drive (and the inevitable accidents).
What you need for Variable X:
Look for the black lamp near the South entrance to the arch along
the East side of the path. "X" is the first digit of the serial
number.
(Error check - on the ceiling of the archway towards the North
entrance is a green five-character identifier, most likely for an
original light fixture. This identifier begins with the letter "T"
and ends with the letter "A". The second and fourth characters are
both numbers; subtract the fourth from the second and it will also
equal "X".)
25. Driprock Arch (1860) N 40° 46.114 W 073°
58.550
Originally, Driprock provided passage for the bridle path
underneath, but when the bridle path was re-engineered in the 1930s
the path was converted into a pedestrian walkway.
What you need for Variable Y:
Underneath the archway near the South wall, near either the West or
East entrance (it's the same at both locations), is a green plate
with another seven-digit serial number. "Y" is the sixth digit in
this serial number.
(Error check - on the ceiling of the archway towards the East
entrance is a green five-character identifier for another original
light fixture. This one begins with the letter "T" and ends with
the letter "B". The third and fourth characters are both numbers;
add them together and it will also equal "Y".)
26. Playmates Arch (1861) N 40° 46.177 W 073°
58.489
Playmates owes its whimsical name to its location in the
"Children's District" of Central Park - including the Carousel, the
Central Park Zoo, the Dairy (kids drank milk before soda!),
Children's Cottage (a sort of petting zoo), and so on. The current
Carousel (which you can still ride) dates to 1950, when it moved
from Coney Island after a fire destroyed the previous Central Park
version.
What you need for Variable Z:
On the ceiling of this arch, near the locations for the original
light fixtures, are grey metal plates. Sandwiched between two
letters are identical four-digit numbers stamped into these plates.
"Z" is the third digit of these four-digit numbers.
(Error check - it is also the third digit of the serial number on
the black lamp near the East entrance to the arch, on the North
side of the path.)
27. Willowdell Arch (1861) N 40° 46.205 W 073°
58.268
Willowdell is a fine archway in its own right, with a bright
contrast between its red brick facade and sandstone trim, and the
vermiculated detail of several of the blocks. But it's one of my
favorites for two other reasons. The first is its proximity to the
Balto statue, honoring the sled dog who heroically led the final
stage of the diptheria serum run to Nome, Alaska in 1925 (and
serving as the inspiration for today's Iditarod race). The second
is that it is the setting for a brilliant photograph of the chief architects of
Central Park (and, of course, its bridges).
What you need for Variable AA:
To the East of the arch you will find my favorite statue. "AA" is
the number of sled dogs depicted on the plaque dedicated to
Balto.
(Error check - it is also the second digit in the serial number for
the black lamp near the Western entrance, on the South side of the
path.)
28. East 65th Street Transverse (1950s) N 40°
46.125 W 073° 58.257
Like its cousin on the West Side, this bridge could have been so
much more. The 50s just weren't known for architectural
creativity.
What you need for Variable BB:
Near the North entrance to the arch, on the East side of the path,
is a bench with a plaque in the memory of Grandpa Vic's birthday.
"BB" is the second digit in Vic's age as of that birthday.
(Error check - it is also the fourth digit in the serial number on
the green plate fixed to the underside of the arch, near the North
entrance on the West wall.)
29. Denesmouth Arch (1860) N 40° 46.106 W 073°
58.266
Denesmouth was an early archway providing pedestrian access to the
Central Park Zoo. Originally there were four beautiful ornate
bronze lamps atop the large posts on the upper level of the bridge,
but three were stolen in the 1970s (again with 1970s New York). The
fourth is currently hiding in storage for possible use as a model
if these lampposts are ever recreated in the future.
What you need for Variable CC:
Along the upper railings are a number of quatrefoils cut into the
sandstone. "CC" is the number of these quatrefoils along
each railing - not added together (the total is less than
10).
(Error check - to the South of the archway is the Honey Bear
statue, and just to the West of the statue is a plaque dedicated
October 30, 2007. On the very last line of the plaque is engraved a
year; the sum of the last two digits of this year is also equal to
"CC".)
30. Green Gap Arch (1861) N 40° 46.077 W 073°
58.401
As recently as ten years ago, you could enter the Central Park Zoo
by way of Green Gap. Construction in the early part of this decade
has rendered the pedestrian walkway inaccessible, unfortunately.
It's not clear when, if ever, the route will be re-opened.
What you need for Variable DD:
On the bench closest to the arch, along the South side of the path,
you will find a plaque dedicated to Heide, Paul and Erika Kessel.
"DD" is the third digit in the year of Erika's birth.
(Error check - it is also the fourth digit in the serial number for
the black lamp along the South side of the path, behind these
benches.)
31. Inscope Arch (1873) N 40° 46.007 W 073°
58.375
Traffic in the 1870s was becoming a problem - and Inscope Arch was
conceived ten years after most of the other bridges in the park had
been completed, to iron out some of the wrinkles developing in
pedestrian-equestrian relations. The land under which Inscope rests
was once a swamp, so the foundation under the bridge is among the
most formidable in the park.
What you need for Variable EE:
Look for the black lamp near the West entrance to the arch, on the
South side of the path. "EE" is the fourth digit in this serial
number.
(Error check - it is also the second digit of the serial number on
the black lamp on near the East entrance, on the North side of the
path.)
32. Gapstow Bridge (1896) N 40° 46.017 W 073°
58.427
The original Gapstow Bridge lasted barely two decades, its wood and
cast-iron frame just not able to handle the levels of traffic it
generated. Its replacement of sturdy stone has fared much better.
Gapstow is a gorgeous bridge in its natural setting, and affords
visitors equally gorgeous views of Central Park against the New
York skyline.
What you need for Variable FF:
Look for the black lamp to the East of the bridge on the topside,
on the South side of the path. "FF" is the third digit of the
serial number.
(Error check - it is also the third digit of the serial number for
the black lamp to the West of the bridge, along the North side of
the path.)
The degrees coordinates for the final stage are 40 degrees North,
73 degrees West. For the minutes, apply the following
equations:
North: 40 degrees, and this many minutes:
[ ( B * X ) + ( C * J ) ] * W * L * M
( A * FF * G * DD * O * BB * Q * T )
West: 73 degrees, and this many minutes:
[ ( AA * E ) + S ] * ( I + R + F ) * H * V * EE *
D * CC * N
( Z * K * Y * U * P )
Good luck and enjoy. Special thanks to lostnak for helping with the
design of the coin, and to childofatom for helping with the final
stage!
You can check your calculations on
Geochecker.com.
Additional Hints
(Decrypt)
Svany vf n snxr ebpx, tebhaqfcrnx rqvgvba, uvqqra va na natyrq abbx orgjrra bar ynetr ebpx naq gjb fznyyre. Lbh jvyy or haqre n oenapu bs n arneol gerr.