You can just use your trip meter and paper map to navigate. NO GPS.
You start at point A .. you should be able to find that on your map!.
Now you travel say 20 km .. in a south west (SW) direction .. look on your map ... Point A .. then 20 km away SW .. there should be a road leading out of point A in that direction and your 20 km along it ..
See .. no GPS. This is a way it was done before GPSes were available.
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With A GPS .. it will take some time work out where it is when turned on. So if you going to stop and use it - turn it on first before you get out the map. If your quick with the above you'd already have your approximate position on the map before the GPS gives you anything.
I prefer a GPS with an internal map. This means I don't have to work out where I am on a map as the GPS does that for me - shows where I am (the screen is usually centered on me), the roads and places around me. Usually I don't have to pull out a map or look anywhere else to work out where I want to go .. that helps if you don't like where you are, and want to leave fast.
Everywhere has big cities where a GPSmap is very desirable. One of the etrex series has a map capability?
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