Hello! I hope it is OK that I’m writing in English; I don’t know Russian.
I just mapped the key col of the Scandinavian mountains, which lies in Russia, about 6 km north of Кенский волок. It is the lowest point on the watershed between the Baltic sea and the White sea: Node: 13239888402 | OpenStreetMap
I estimated the position and elevation of this col based on old soviet topographic maps, but there is something unsatisfactory about the inherent lack of precision in that, with contour lines only every 10 meters or so.
That’s why I wanted to ask you guys: what sources would you rely on, for Russian topography? Is there e.g. an open source and high quality DEM available for this part of Russia? Also, is this “col“ known and talked about in Russian sources? Does it have a name in Russian? Or is it mostly us Scandinavians that care about it, since it relates to our mountains? I say “col“ because the area is very flat, it seems, so I don’t think the col is very obvious when actually standing on it.