To use this GE Application you must install Google Earth on your computer first.
Download GE installation file below first and then the .kml file
Since the North and South Magnetic Poles are not located exactly on the Earth's North and South Poles, respectively, and due to other irregularities in the Earth's magnetic field, true north differs from magnetic north in most locations. One consequence of this is that magnetic compasses do not point to true north in most places. Magnetic declination is the angle between the local magnetic field and true north, and can be represented on maps by isogonic lines, which connect locations that have equal magnetic declination.
for PC, Mac, or Linux