This should be a genuinely geeky mystery cache.
Examine the 10 image samples labelled Q W E R T Y A S D F G and H. Determine the programming language that may have been used in each and convert the name to a number using A=1 Z=26.
The cache can be found at N51 27.XXX W001 15.YYY
where XXX = [ (D+H) * (Q/A) ] and YYY = [ (W+E+T+Y- (G/F) ) * ( R*R/S) ] .
