The cache is not at the posted coordinates.
The posted coordinates will take you to the granite steps that were used to enter the building that once stood here.
There is also at plaque with a little history of what was here. This is where you will get your information needed to complete the the coordinates to the final location.
A= 1st line, how many letters in the 5th word?
B= 2nd line, how many letters in the 6th word?
C= 3rd line, how many letters in the 1st word?
D= 6th line, how many letters in the 4th word?
E= 10th line, how many letters in the 6th word?
F= 8th line, how many letters in the 2nd word?
N 44° 21.ABC W 70° 33.DEF