INTRODUCTION TO NAVIGATION PRESENTATION

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      INTRODUCTION TO NAVIGATION

Reading a map is an essential skill for planning a walk and for
knowing where you are.


You don’t need to be able to use a compass to lead a low level
walk, but it can help. It is however essential to be competent in
using a compass for leading remote and challenging walks.
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MAPPING
BASICS
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                     MAP TYPES




1:50000 Landranger                1:25000 Explorer




      Best to check date of issue as landmarks can
   change over time. Other maps are available, such as
                        Harvey's.
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5
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          AUDIENCE PARTICIPATION!


                 WHERE AM I?

Give everyone 4 or 5 Grid References from the map
   and ask them to identify what they find there
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          MEASURING SCALE


          1:25 000 OS Explorer




         1:50 000 OS Landranger



It might help you to remember that the larger the number in the
         scale, the smaller the scale of the map will be.
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                 AUDIENCE PARTICIPATION!

                        MAP SYMBOLS


Split into groups and identify
the symbols
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              CONTOURS




How high is each hill?
Contours closer together at top
Contours closer together at bottom
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AUDIENCE PARTICIPATION!
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MAP FEATURES
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PARTS OF A COMPASS
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ALIGNING THE MAP WITH THE REAL WORLD
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(bridge)


      (building)
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Read the
bearing
off here
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To follow the bearing:
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     MEASURING DISTANCE


Grid squares

String method

Straight edge

Map measurer
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               AUDIENCE PARTICIPATION!

                        FIND YOUR WAY

Give everyone 3 or 4 end points and ask them to identify what
they are, the distance from each start to each end point and
the bearing between them [this should be in the notes]

EXAMPLE

 START POINT GR X        END POINT GR Y         BEARING FROM X TO Y
 WHAT IS FOUND THERE?    WHAT IS FOUND THERE?   AND DISTANCE

 438005                  405013                 285 degrees
 High House              Youth Hostel at High   3.38 km
                         Cross Castle
                                                             21

                  TIMING YOUR WALK

    When looking at timings for your walk consider:
    • walking speed (vary with terrain, stiles, party etc)

    Kph                        mins per km
     3                           20
     3.5                         17
     4                            15
     4.5                          13.3
     5                            12
•   Climbing hills – Naismith’s rule 30 mins extra per
    300m ascended (1 min per 10m contour line)
•    Stops, including comfort breaks, lunch, etc…
•    Contingency
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             FURTHER GUIDANCE AND SUPPORT


   More advice and guidance can be found at the walk leaders
                pages of the Ramblers website:
www.ramblers.org.uk/Volunteer/AreaGroup/Resources/Led+Walks.htm

                or email ledwalks@ramblers.org.uk




       Thanks to all Ramblers groups whose websites were the source of some of the pictures.

				
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