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Map-reading skills aren't essential at Hillscape, but they might
help! So we offer advice and some basic instruction in navigation
and map-reading to our guests.
Many of our self-guided walk routes are suitable for complete beginners,
and can be followed simply by using our detailed instructions; some
of our guests hardly ever look at the map which is also provided.
However, map reading skills are essential for some of the walks
in more remote terrain, which offer the opportunity to practise
your map and compass skills in open hill country.
Even if that sort of walking isn't your "cup of tea",
knowing that you can use a map and compass will increase your confidence
whenever you are out walking. So if you haven't had much previous
experience of walking by yourself, and of having to find your own
way; or you are baffled by the instructions that came with your
new compass, we'll be happy to get you started, and we are always
here to offer advice at any level, to help you to get the most out
of your holiday. There's no charge, and we usually do it round the
lounge table in the evening.
Anne is a geography graduate and has had experience in teaching
on navigation courses run by the University of Wales, Aberystwyth,
and both Richard and Anne have taught map-reading and compass skills
to beginners through their involvement with the local orienteering
club, Mid
Wales Orienteers.
Global Positioning Satellite (GPS) technology has changed many
aspects of navigation, and there is a widespread - but mistaken
- belief that map-reading will soon become a thing of the past.
Well, that may be true for people driving cars on roads, but for
walkers in open country, a map and compass will continue to be important,
because you will still need map skills to work out the best route
to follow with your GPS receiver! They are also much quicker to
use than a GPS. But if you get totally lost, a GPS is definitely
the quickest way to pinpoint where you are. There are also some
popular pastimes for GPS owners, and if you'd like to learn more
about one of them, see our Geocaching
page.
The illustration on the right shows complex open mountain terrain
on the northern slopes of Cader Idris, near Dolgellau, used for
elite orienteering events. The area was surveyed initially from
air photographs, using a process called photogrammetry; this process
uses two overlapping photos to obtain a stereoscopic view, and a
sophisticated viewing apparatus which allows the operator to measure
the altitude of any point on the photo, and thus to plot contours.
The operator also plots as much detail as he can see, such as boulders,
crags, marshes, streams, walls, fences, trees, and even sheep -
which can easily be mistaken for boulders! When the photogrammetric
plot is complete, a land surveyor takes the plot into the field
and checks its accuracy, adding features which the photogrammetrist
may have missed, deleting any spurious features (such as sheep!)
and incorporating any changes which might have occurred since the
air photos were taken. Finally a cartographer uses specialised computer
mapping software to create a file from which the finished product
can be printed.
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