Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-orienteering-0e5d293cbf91

Why must you consider declination when using a map and compass together?

To match map bearings to what the compass shows.

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  1. To count control points faster
  2. To match map bearings to what the compass shows ✔
  3. To measure the map's paper thickness

Why: Map bearings use true or grid north, so you adjust for the magnetic difference.

Huh, didn't know that: Map bearings use true or grid north, so you adjust for the magnetic difference.

The dad joke
Skip declination and your route may go south, literally.
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References

Answer: To match map bearings to what the compass shows. Map bearings use true or grid north, so you adjust for the magnetic difference.

  1. Scouting America: Orienteering www.scouting.org/merit-badges/orienteering
    factoring in declination can save you some major headaches down the road
    Checked 2026-11-07.

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That's stuff everyone should know.