posted on Jan, 17 2019 @ 10:56 PM
a reply to:
FilthyUSMonkey
Only if you are moving very long distances but more importantly is making sure your maps have updated magnetic declinations. Those are where you are
going to make your adjusted calculations from which I am assuming you know that already.
If you're out just walking around then your basic land nav skills will still get where you want to be and back where you came from.