Would something like this help?

Thank you, @Raiko :)

@mahler - thanks :) I have no idea. I think this is probably too small a scale to show anything but the location of the settlements. Maybe Jerry will have the answer for that when the larger scale city maps are drawn.

I've done a bit more work - adjusted the river system according to the US Geological Survey maps and then adjusted the mountain ranges and terrain around them. The locations labelled in pink are only vague suggestions from me, and may not appear in the final map.

And I've just noticed that by repairing the shoreline where it was missing bits (I did a trace from a heightmap from Tangram if you remember), the labelling of the water bodies in the south east now needs a bit of attention.

I'm really loving this style. I can't think why I never tried it before. But if I had you might not have had Spectrum.

Here is a bit more work. I've added quite a few more places from Jerry's notes, and attempted to sort out that north east block of higher land. I know it's not really a mountain rage, so I can take it out again if you don't like it, Jerry :)

This image is 2/3 full size and slightly more compressed than is usual for a jpg, so apologies if there are any artefacts.

You're welcome :)

This is one of the only ways for now.

There are possible solutions in the pipeline, but they are quite a long way ahead just yet.

It didn't work on this one. But I got it to work with a backing sheet instead. For some reason the usual purple didn't do the trick. Sometimes you have to try different colours.