@neil with a map and a compass I can triangulate my position. (I haven’t done that in decades so am rusty now, also I have maps but not sure if I could find a compass other than my iPhone now)
@neil@hpcchris That was what I was taught when I was in the Scouts, many decades ago. But the Magnetic north pole has moved significantly since then. I think, if you're in the UK nowadays, the magnetic declination is as close to zero as doesn't matter.🧭