I've scanned the forum, and while I can see references to 'the river police', which apparently is a title bestowed upon the people who know more in-depth on how rivers work, I couldn't find 'any' reference as to mountains.
And on that thought track, it made me question other aspects that haven't been covered by settlements and rivers.

What are the common ways a mountain range pops up? what are the characteristics of such a mountain range?
Basically the usual 'how, when & where' questions.
Made me wonder why certain places spawn forrests aswell, they don't litter the landscapes.. and usually form sort of clumps, at least that is how I've seen it with my eyes.
What causes a forrest to grow? what slows / stops its growth? In which regions are they more likely to show up, etc.
I suppose this could go in the tutorial forum, but since I'm in the process of making a world map, and plan on finishing the regional map after that, I'm particularly interested in regards to those kind of maps.

Any insights on this would be greatly appreciated.