Here, I'll help you out. Not just for you, but for others who may not understand.
1. Magnetic Declination is the angular difference between true north, the point from which all maps are drawn, to magnetic north, the point to which all compasses point.
2. In the 20th century the magnetic north pole has moved 700 miles, and is currently moving at a rate of 25 miles per year.
3. If it continues on it's current path, it will be over Siberia by the year 2050.
Interesting fact: Since 1650 the Agonic line for North America has shifted across the entire southern portion of the United States and back again and currently lies in Mississippi.