The Federal Office of Topography “measures” Switzerland. It surveys and documents the landscape and the underground, and produces high-quality spatially-referenced geodata. Its most important products include landscape and height models, aerial images, orthophotos, geological data and maps, reference data and of course the well-known series of national maps.
Swiss Topo 1:25k
Switzerland
Difficult
Tour du Mont Blanc
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Difficult
GR 5
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Extra Difficult
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Difficult
Chamonix to Zermatt - Haute Route
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Medium
Westweg
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