The cache is not at posted coordinates.
A short Wikipedia search is all you need to solve the puzzle below.
USS PENNSYLVANIA (1837) was a four-decked 140 – gun ship of the line of the
United States Navy, named for the Commonwealth of Pennsylvania. She was
the largest sailing warship ever built for the United States, the equivalent of
a first-rate ship of the line of the British Royal Navy.
PENNSYLVANIA was one of the “nine ships to rate not less than 74 guns each” authorized by the US Congress on 29 April 1816. She was designed
and built by Samuel Humphreys in the Philadelphia Navy Yard. Her keel was
laid in September 1821, but tight budgets slowed her construction, preventing her being launched until 18 July 1837. She had three complete gun decks and a flush spar-deck and her hull was pierced for 136 guns.
Her only cruise was a single trip from Delaware Bay through Chesapeake Bay
to the Norfolk Navy Yard.
PENNSYLVANIA remained at Norfolk Navy Yard until 10 April 1861 when she was burned to the waterline to prevent her falling into Confederate hands.
Exploding shell guns were replacing solid shot by the time PENNSYLVANIA was fitted out.
A Bureau of Ordnance Gun Register for 1846 records her armament as follows:
Spar Deck:
_C_ 9 pounder cannons and _A_ small brass swivel.
Main Deck:
_B_ 8 inch chambered cannons received from Norfolk in 1842,
and thirty-two 32 pounder cannons.
Middle Deck:
Four 8 inch chambered cannons received from Norfolk in 1842,
and 3_D_ thirty-two pounder cannons.
Lower Deck:
Four _E_ inch chambered cannons and 28 x 32 pounder cannons.
The cache is located at:
N 36 48. A + B A + B C W 076 17. D A + E B + C
