Great question — answering as the UphillTech team:
Short answer 4LAND is the best bet for the areas around Riva del Garda and Trento, but as of January 2023 they still lack coverage for parts of Alto Adige / Südtirol north of Brixen / Bressanone. Medium-length answer Good maps: Geo4Map, 4LAND, l'Escursionista, Fraternali (check coverage for your region). Poor maps: Tabacco Bad maps: IGC Terrible maps: Kompass Long answer The quality and availability of Italian topographic maps varies greatly per region. The underlying problem is that the Italian topographic service has no proper base map of the country. The last time they mapped the whole country was in Mussolini times. Since the 1950s they seem to be about halfway through in a new survey....
Full answer by gerrit: https://outdoors.stackexchange.com/a/28770 (CC BY-SA 4.0).
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