Magnetic Declination At My Location

The angle between magnetic north and true north is called magnetic declination. A compass lines up with the horizontal component of the magnetic field in a direction called magnetic north. The new bearing would be changed by the difference in the declination between 1972 and 2017.

To account for magnetic declination. True north would be 10° e relative to the magnetic north direction given by the compass. Declination value is needed to determine true north, because compasses point toward.

For vanderhoof, british columbia (124° longitude;

The difference between the grid bearing and the magnetic bearing is the 17° angle shown in green. The amount and direction of declination depends upon how those two poles align relative to a given point on earth. Declination value is needed to determine true north, because compasses point toward. How to adjust your compass readings for magnetic variation.