[mandrill7]

Interesting, attractive stuff! The rivers are a little angular to be really nice and can be redrawn. I drew all my Belarus rivers on a 1:200 map, then had to rework the entire river system when I went up to 1:50 for the map_c. It took ages, but the results were well worth the trouble.

Would it have been quicker if you did all the drawing in the 1:50 scale map and afterwards shrink the map to 25% to get the 1:200 map?

I superimposed the 1/4 scale map_c over the map_h to trace the rivers over the river valleys. I tried in 1:50, but my old, puny computer just crashed. So I had to go back to 1:200 and then rework when I scaled the map_c back up.

In any event, the lakes in the map_c dems were so distorted at 1:50 that they needed a complete rework anyway. The microdem stuff seems designed for about 1:200.