Here we go kids, a free and pretty good book on map & compass navigation.
It's orienteering specific, so doesn't cover a couple of things you'd want to know when hiking like triangulation (see pic) and identifying likely avalanche areas for example.
These are both pretty easy to figure out once you know the rest though, but you also NEED to do an avalanche course to identify likely snow conditions one will occur in, regardless of angle alone if you're in such areas.
(There's an easy to use formula to work out how steep a slope is - basically x lines on a y scale topomap in z Cm, something something = angle.
I've got this and a few other things laminated on a card on my compass lanyard so I don't have to remember them, especially when I'm out, cold, hungry, and wet.)
Anyway, here's your link. Read online or download PDF.
https://vdocuments.site/discovering-orienteering.htmlHere's another site I found, looks like it's pretty simply presented.
Link is to triangulation page.
http://www.compassdude.com/compass-triangulation.phpBasically shows you'll end up with a triangle created by 3 bearings. (see pic)
Ideally you're on a peak or ridge, so whatever high point is more or less in the triangle is where you are. You'll never end up with a precise Y intersection. Take more bearings for more accurate position.
>What neither of these seem to cover is declination calculation is different for N/S hemispheres. 