B is for Butler, birds, blue, .... What is your favorite B word?
At the posted coordinates you will find a sign on a large rock with the information needed to find the final.
In 1913 Miss Butler donated how many acres? This number is AB
What year was this erected by the Bronx Parkway Commission? This is CDEF
Final coordinates = N41 00.CFC W73 48.F(D-3)(A+B)
There is a path that loops around this small park. Cache hiding spot is a few steps off the path.
You can validate your puzzle solution with
certitude.