The trick Sue taught me was EXPORTSETMPPP 40000000 (that's 40 million).

Is your dragon a magenta or varicolor symbol? I'm trying to wrap my head around what it's doing.

I absolutely love the swamp and marsh fills. You can see the water! Most of the overland swamp and marsh fills don't include that, though you can draw your own rivers lines on top.

Very nice.

Ralf shows another approach in this Height Transitions video as well

Good eye! I will fix.

Thank you!

Congratulations, Wyvern -- and indeed, very apt to come when you're designing a map in Jim's memory. I've been pondering ideas for something to do in his memory, too. Maybe a temple or shrine dedicated to "Saint Jimpey, patron saint of navigators."