This cache is not at the posted coordinates. Visit the following locations to reveal the final location.
Stage 1: N 037° 19.289' W 121° 51.627'
The number of letters in the last word on the green sign plus 4 is A.
Stage 2: N 037° 19.345' W 121° 51.663'
The number of letters in the first English word plus 1 is B.
The number of letters in the only last name on the plaque is C.
Stage 3: N 037° 19.377' W 121° 51.672'
The last digit of the only year on the plaque plus 1 is D.
The final coordinates are N 037 19.2AB W 121 51.6CD. Good luck!
You can validate your puzzle solution with
certitude.