I have passed by this spot soooo many times and wondered what exactly this location was about. Today, I finally stopped to check it out. Lo and behold, I happened to have a container with me and I noticed a location reasonably close (drive or bike) enough to make a nice offset. Read the information at the location, calculate what is needed and go find the cache.
You are solving for N42 01.ABC W087 52.XYZ
A= The number of letters in the person's first name plus one (1)
B= Subtract the first digit from the second digit in the first date listed
C=The number of letters in the first word of the first line
X=The number of letters in the first word of the third line
Y=Subtract the fourth digit from the third digit in the second date listed
Z=The number of letters in the last word
Please be careful at the virtual stage if you park across the street. There is also parking very close to GZ.