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Archaeomagnetic dating sites

Since the pole has wandered over time, comparing the alignment of the iron mineral particles to the master curve of the North Pole provides a usable date for reference. Howard 1991 Direct dating of prehistoric canal sediments using archaeomagnetism.

The Earth's magnetic core is generally inclined at an 11 degree angle from the Earth's axis of rotation.

Therefore, the magnetic north pole is at approximately an 11 degree angle from the geographic north pole.

On the earth's surface, when you hold a compass and the needle points to north, it is actually pointing to magnetic north, not geographic (true) north.