At what height do navigation compasses stop working?

How far up would you have to go for a compass to stop working? - Quora

How to Use A Compass

How far up would you have to go for a compass to stop working? - Quora

5 Acceptable Methods for Calibrating an Aircraft Magnetic Compass - Barfield Tech Hub

Compass Navigation - Compass Navigation

How far up would you have to go for a compass to stop working? - Quora

Compass Navigation for 5-8 Year Olds

Are Magnetic Compasses Obsolete for Hiking and Backpacking?

How far up would you have to go for a compass to stop working? - Quora

Learn How To Use A Map And Compass

Did some tests of the treasure compass to get an approximate range. I did some other tests about compass center and height. : r/Genshin_Impact

The History of the Compass - Dalvey