Cold Spring Bridge is one of the oldest in Stamford, and this cache will show you through it.
Your coordinates are:
N 41 0A.BCD W 73 EE.FGG
The listed coordinates should take you to a "Glacier Pot-Hole" as said on the plaque.
To find the North coordinates:
A= The third digit of the first number
B= The second digit of the last number
C= The third digit of the last number
D= Which group is listed at the bottem?
Stamford Enviromental preservation group - 4
Stamford Garden Club - 6
Stamford Historical preservation group - 9
Now proceed to Stage 2 at N 41 03.962 W 73 33.494
E= The last digit of the year the bridge was rehabilitated plus 1
F= The number of people and companies listed UNDER the mayor
G= The third digit of the year it was rehabilitated.
You should now have the coordinates to find the cache.