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How To Set a Compass |
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map1 |
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| In this example imagine that we are standing at the pumping
station (bottom right circle) and want to go to the stream junction (top
left).
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map2 |
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| 2nd Swivel the compass housing until North (red
N) points to the top of the map, use the parallel orienting lines on the
compass and the blue grid lines on the map to help you.(map3)
note: you can find the top of the map (grid north) by looking at the writing, most of it runs from west to east with north being at the top. |
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map3 |
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| 3rd Read off the bearing, in this instance 312 degree's | |
| 4th Add 2 degree's to adjust for the difference
between grid north (which the map points to), and magnetic north (which
the compass needle point's to).
note: this difference varies over time and also with country , this information is usually specified on the map. The variation given here is for Snowdonia in 2007 |
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| 5th Follow the bearing- Swivel the whole compass until the red end of the needle line's up with the North (red N) on the compass housing. Then follow the direction of travel arrow. | |
Further recommended reading: |
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Explorer Map 0017: Snowdon/Yr Wyddfa and Conwy Valley/Dyffryn Conwy (Explorer Maps) Amazon price: £5.59 
1:25000 map of Northern Snowdonia |
 |
| Mountaincraft
and Leadership Eric Langmuir Amazon price: £14.99
Comprehensive but concise navigation section. Also chapters on ropework, mountain weather and winter skills. Required reading for mountain leaders but also any keen hillwalker. |
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| Navigation
for Walkers Julian Tippett Amazon price: £8.99
An excellent book that takes the reader on a tour of basic navigation.
By using clear language the author communicates in a concise way how to
navigate. |
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See the High Trek Library for more books |
Recommended Gear: |
 Silva
Expedition 4 Compass
Field&Trek Price £24.99 |
