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OUTDOOR
NAVIGATION TIPS
By George G. Spearing
Hunting or hiking, particularly in remote areas, is a great
experience if approached with due regard for fitness, safety
and skill.
One of the major skill categories, is the ability to
navigate with or without compass and map. Ideally, no one
should head off the beaten track without map or compass, but
what if you find yourself in that situation, or you lose or
damage your compass?
Here are a few basic ‘skills’ that could one day be of use
to you.
Finding direction by using your watch...
If you have a watch that is working correctly, you can
always quickly determine the points of the compass as long
as the position of the sun is visible.
The method used varies depending upon which hemisphere
(northern or southern) that you happen to be living in. The
following methods are described using an analog watch,
(that’s a watch with an hour and a minute hand) but they can
be applied just as well if you own a digital watch – just
use your imagination to superimpose the 12 hourly numerals
and the relevant position of the ‘hour hand’ on the face of
your digital watch.
Northern Hemisphere
Holding your watch horizontally, point the ‘hour hand’ of
your watch at the sun.
Note the direction that lies exactly midway between the
‘hour hand’ and the numeral twelve on your watch. This will
be south.
Once you have established this, it will be easy to determine
the other points of the compass. |
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Southern Hemisphere
Holding your watch horizontally, point the numeral twelve on
your watch at the sun.
Note the direction that lies exactly midway between the
twelve and the ‘hour hand’.
This will be north.
These methods will give you a good approximation of compass
direction.
If your watch happens to be adjusted for daylight saving at
the time, then ‘remove’ the daylight saving for greater
accuracy.
Another method of determining compass points can be used if
you do not have a watch. This method takes longer and also
requires enough sunlight to cast a shadow...
To find North without a watch
Before noon, on level terrain, position a stick of about 3ft
upright into the ground.
Mark the tip of its shadow with a peg or stone.
Using the tip of the shadow as a radius, draw an arc around
the stick.
The shadow will shorten as it approaches noon, pulling back
from the arc. It will then lengthen again - where the
afternoon shadow once again touches the arc, place another
peg or stone.
Now draw a straight line between the two pegs/stones - this
will be an East/West line, with the first peg being in the
westerly direction.
You can now draw a North/South line at right angles to the
East/West line.
The following (less accurate) method can also be used at any
time of the day without drawing an arc...
Peg the tip of the first shadow, then about 20min later peg
the tip of the moved shadow. Draw a straight line between
the two pegs, and this will be an approximately East/West
line, with the first peg again being the westerly one.
A typical error when lost is a tendency to wander off what
you may think is a straight line bearing, sometimes even
slowly circling back on yourself.
To prevent this, note an object (tree, rock, terrain
feature) that lies directly ahead of you in the direction
you wish to travel, then aim for it. When you reach it, take
another bearing on the direction you wish to head, sight
another object directly ahead of you and repeat the process.
In areas of restricted distance visibility, you may have to
repeat this quite often over short ‘legs’ to ensure that you
are remaining on course.
Keeping a course by the clouds...
What if it's a cloudy day with no sun visible to get a
bearing on, or the bush canopy prevents you getting a clear
"shot" at the sun?
Well, if you're lucky, it may be windy with the clouds
moving in a constant direction - note the directional flow
of the clouds, and adjust your course relevant to their
direction.
e.g., If the clouds are moving from your front from right to
left over your shoulders, keep them there, at the same time,
sight an object straight ahead of you and head for it.
To retrace your steps in the same general direction, just do
an about turn, then keep the clouds moving from behind and
now left to right over your shoulders, and repeat the
process.
As another example of ‘cloud navigation’, once, when moving
inland through dense bush away from a coastal beach, I
eventually decided to retrace my steps to where I’d left my
kayak. Surrounded by dense undergrowth and trees, I suddenly
realized that I didn’t have any idea in which direction the
coast lay.
Before entering the tree line, I’d noted that the clouds
were moving in a direct line from the trees to the coastline
– it was just a simple matter then of looking up and
following the direction of the clouds to enable myself to
head in the correct general direction and once again access
the beach.
Being aware of your surroundings will often pay off, so try
to cultivate that habit.
George Spearing is author of, “Dances With Marmots – A
Pacific Crest Trail Adventure”
ISBN:1411656180
http://www.danceswithmarmots.com
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