Thanks for your help, Joe :)

I have managed to reduce the sideways drift by removing one of the Displace effects, the Blur and Blend mode. I think that for now this is the best I can do, and suspect that I was pushing the effects to do unexpected things by pushing them a long way beyond what is normally expected of them. This is a much better result, and I will probably stick with this one now.

I boosted the height factor of the normal map when I made it, because I wasn't getting enough swirliness. Maybe that is affecting the result?

I'm glad you did. It looks even better now :)

I am assuming the map itself wouldn't be part of the finished thing, but just a reference guide, so you could use GoogleEarth?

https://earth.google.com/web/search/Delaware/@38.84003118,-76.53733817,1.59649626a,11267.14429354d,35y,0h,0t,0r/data=CigiJgokCfgJtjJHP0BAETkz7CqfPz9AGaggKPAD0lnAIa6iSu8DjFrA

Here is the area you wanted, and a zoomed in part of it.

Hi Everyone! :D

In this week's Live Mapping session Ralf will be creating and using heraldic symbols from the March issue of the 2008 Cartographer's Annual.

Come along and join in the fun :)