The final cache is not at the published coordinates! Solve the puzzle to find the LARGE container (the closest large container to Sheffield City Centre)!
Congratulations to Marky1981 & SimeyBop on a joint FTF!
Have fun COUNTing A1 B2...
N53° AB.CDC W001° AE.FGH
To get the coordinates, use this...
A = 20 23 15
B = 20 8 18 5 5
C = 19 5 22 5 14
D = 15 14 5
E = 5 9 7 8 20
F = 19 9 24
G = 14 9 14 5
H = 6 15 21 18