"Maxprop" wrote in message
Much as it pains me to do so, I have to agree with you here. The agonic
line used to run smack dab through my home when I was a kid. Now it's
about 100 miles east.

When you have to confirm property limits from a survey completed in 1951...
and that survey is based on Magnetic North bearings... Geological Survey of
Canada can provide the exact location as well as path of travel of the
Magnetic North for any year recorded. I have been to the Magnetic North in
1983.

CM