Extremely Detailed Guide to Land Navigation

For those of you that are going to be on the move if the shit ever hits the fan, then you need to be able to navigate the land.  And if we assume that you won't have access to the GPS on your phone, you will need to know how to do it via topographical maps.  It's an interesting subject and while researching it, I came across this extremely detailed guide to land navigation.  It is a series of articles, one building on the previous article and looks like it is a challenge to go through.  However, if you [...]