This cache is not at the posted coordinates.
Solve this simple puzzle and do the dance.
Least significant digit.
N 38° 47.ABC' W 121° 16.DEF'
A = Colts Jan 12, 1969
B = Buffalo Jan 26, 1992
C = Washington Jan 22, 1984
D = Pittsburgh Feb 6, 2011
E = Buffalo Jan 31, 1993
F = Dallas Jan 18, 1976
You can validate your puzzle solution with certitude.