[Tandem]

"I would not dismiss shifting magnetic fields so quickly. The "magnetic" North Pole has shifted dramatically in the past 40 years. Now it is not situated on the North Pole but is a few miles inside the Canadian border. Ask any Boy Scout leader."

I hate to burst your bubble, but the magnetic North Pole has NEVER been situated at the geographic North Pole. Also, it hasn't moved in the last few centuries and probably not for eons.

[ex-Texan]

I hate to burst your bubble, too. But you are wrong. Read nearly 600 reports about the shifting magnetic North Pole HERE.

Oh, well . . .

[BohDaThone]

You are mostly correct. However, the magnetic north pole does drift just a bit over time. You can get correction factors for compass readings on highly detailed maps, and you will see that those factors vary just a bit over time. But certainly not "radically" or "suddenly"

[ex-Texan]

More Precisely the Magnetic North Pole has shifted at least 250 miles in the past 20 years! From being located in the geographic polar region to the Queen Elizabeth Islands in Canada!