How to Take into account magnetic declination when using a compass to navigate
If you plan on using a compass as you sole means of navigation in a survival situation, you had better be familiar with magnetic declination and how it affects compass navigation. This video will teach you all about magnetic declination and how you need to take it into account when planning your route on a map with a compass.
From the Creator:
Remember: Declination East: Compass Least. Declination West: Compass Best.