<offtopic> Nov 30, 2020, 14:33 by amadva...@gmail.com:
> On Mon, Nov 30, 2020 at 12:27 PM Warin <> 61sundow...@gmail.com> > wrote: > >> imagery may well be better than survey by consumer GPS >> > I agree. Where an image is available I always use it as reference. But most > of the trails of my local area are under the woods (low mountain) and the GPS > is the only source of information. > Check whatever LIDAR is available! My region has high-quality LIDAR data on a compatible license allowing to - for example - map paths in a forest based on elevation data. </offtopic>
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