Posts by Guy Rivest
The Brunton Truarc 3 compass is ajustable for declination WITHOUT the need of a screwdriver like tool. Just grab the clear vial with your left hand index under and thumb over to prevent it from mov...
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When working with map AND compass, the declination should always be taken from the grid north (GN) since you align the compass orienting lines (red or black lines on the bottom or the bezel of the ...
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