Aw thanks Jo

I am coming back to it - after this current Challenge map.

Where working on several maps at the same time can cause delays in progress on individual maps, there's a bonus to doing this - a method in my madness, because now I look at it again I can see all kinds of things I might have done better!

The shape of the land is still a bit clunky. I might change it, but now that I've worked out how to represent the relief it should be a lot easier than the first time