deg. 39' | 2.1
2,100' | 26 deg. 45' | 2.0
2,200' | 27 deg. 50' | 1.9
2,300' | 28 deg. 53' | 1.8
2,400' | 29 deg. 56' | 1.7
2,500' | 30 deg. 58' | 1.6
--------------------------------------------

Up till now I have only been describing the official Ordnance Maps.
There are several other maps which may also be useful.

The Dufour maps are good for direction and lie of country, but their
scale being 1 in 100,000 they are not much help for actual running.

The local Ski Tour Map is useful to show where the usual tours go,
but cannot always be trusted for gradients or cliffs and rocks. The
Pontresina map, for instance, though showing an equidistance of 30
metres as in the Ordnance Maps, really has 50 metres contour lines,
which might be a terrible snare to the unwary, who would confidently
run towards a slope, thinking it was about 20 deg. and find that it was
nearer 35 deg., or an avalanche slope. In a case like this the Ordnance
Map must be used for actual running, while the Ski Tour Map is used to
show the line to be followed.

In some districts, such as the Bernese Oberland, the Ordnance map has
been used for the local Ski tour map, and the tours shown on it in
red. This is a great saving of weight and money for the runner, who
then only has one map to carry.

Most Ski maps show dangerous avalanche slopes. The local Summer map
published in most tourist centres in Switzerland is not much use to
the Ski runner, because it shows walks which may be along slopes or
down cliffs, which are perfectly safe in Summer and very dangerous in
Winter.

I strongly advise all beginners who are bitten by the joy of Ski-ing
to buy, at any rate, the small local sheet of the Ordnance Map which
usually only costs Frs. 1.30, or roughly 1s., and to study it
carefully, noticing the contour lines on the well-known Nursery
slopes, and gradually realizing the gradient represented by the
different widths between them.

Let him also notice the difference between a hill and a hole on the
map. This is easily recognized either by the thin blue line of a
stream emerging from a lake, or by comparing the nearest heights shown
on the dotted lines or some marked point. Contours are often puzzling
to a beginner in map reading, but knowledge of what they represent may
save a party from a weary climb back up a place they have gaily ski-ed
down, thinking t