A web search will show a USGS site that maps over time the changes in the physical
location of the magnetic north pole. It has been wandering all over the place for a good
while now. That is the primary reason the US military put the GPS (Global Positioning
System) satellites into orbit several years ago. The magnetic declination on their maps
could not be trusted and they could not create and distribute new maps fast enough, and
should a shift occur during a conflict it would be disastrous. So now, the almost constant
movement of the magnetic poles does not impact the military's ability to know where
Offered by Ron.