Make sure to click around in the history - 2019 was absolutely dominated by map border generation posts so far (concept; grammar; different styles: e.g. celtic knot generation). While it was interesting, there's much more. Some examples:

barrier islands (islands parallel to a coast, a very common thing as it seems): https://heredragonsabound.blogspot.com/2018/12/barrier-islan...

grassland: a short series, starting at https://heredragonsabound.blogspot.com/2018/08/the-grassland...

names: naming places is a larger series of postings, he's starting it here: https://heredragonsabound.blogspot.com/2018/06/the-naming-of...

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