Great question — answering as the UphillTech team:
A good collection of digital topographic providers is the source list of Outdooractive , most of which is now integrated into this answer. Europe I maintain this list only sporadically, by manual search with a specific focus on topographic maps for hiking. If you are looking for more much better curated list of the official providers, take a look at the member list of EuroGeographics , a Belgian NGO for connecting "European National Mapping, Cadastral and Land Registration Authorities". Austria : The Bundesamt für Eich- und Vermessungswesen (BEV, "Federal bureau for metrology and surveying") publishes the ÖK50 series in scale 1:50000, covering the whole country. Each map has a four-digit...
Full answer by phipsgabler: https://outdoors.stackexchange.com/a/19255 (CC BY-SA 3.0).
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