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Uncontrolled copy not subject to amendment. Basic Navigation Using Map and Compass. Basic Navigation Using Map and Compass. Learning Outcome 2: Know the different types of north. True / Grid / Magnetic North. True North and South are at the geographical poles.

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Uncontrolled copy not subject to amendment
Uncontrolled copy not subject to amendment

Basic Navigation Using Map and Compass


Basic navigation using map and compass
Basic Navigation Using Map and Compass

Learning Outcome 2:

Know the different types of north


True grid magnetic north
True / Grid / Magnetic North

  • True Northand South are at the geographical poles.

  • Grid Northis the direction to which all Ordnance Survey Maps are oriented. We take our map bearings using Grid North.

  • Magnetic Northis the direction a compass points to and in the UK it is located approximately 5º West of Grid North.


Magnetic variation
Magnetic Variation

  • It is important to understand the relationship between Grid & Mag north as this will become important when we start to convert bearings to and from a map.

True North

Grid North

Magnetic North


Magnetic variation1
Magnetic Variation

  • The difference in degrees between Magnetic (Mag)North and Grid North is referred to as the Magnetic Variation (usually 5º West in UK.)

True North

Grid North

Magnetic North


Magnetic north
Magnetic North

The 3 North Poles as shown on an OS map



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