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by StringyBob 2000 days ago
Pocket earth with the contour maps has been my go to offline hiking map for the last 5 years - not many other openstreetmap systems have that countour data. I think it uses the https://www2.jpl.nasa.gov/srtm/ dataset, which is great, but I did get caught out once by voids in shuttle data meaning there was a 1000m deep hole in the mountain map that wasn’t there!