I am so forgetful; I didn’t even remember the name of the page! Oh man.
DTR- the main bit of the setting- is set on one largish continent: the Known Country. There’s a smallish chain of islands to the SE that are (is?) a part of it, and the oceans around it as well. The equator-equivalent is to the south- Sonaaq is much warmer than Udeyin.
To the north of the Known Country is, predictably, the Unknown Country/ies. It’s main features as known so far are massive, sweeping beaches of pale pale sand, and an incredibly, mind-bogglingly huge forest- mostly evergreens and evergreen-a-likes, but also with enough deciduous trees to give a scientist a fit. It’s weird.
The Known country is a very old continent, smooth and worn. Even the jagged cliffs of the north are a little soft, a little hazy. In the north are the aforementioned cliffs- famously stark and grey. The land there, while a little hazy and rainy, definitely isn’t barren. It looks a lot like a moor- broad, flat plains that are covered mainly in stubbly grass and short bushes. Here are an astounding number of birds, a few very hardy breeds of sheep and ponies, and a number of amphibians live. For predators that are out of the ordinary, there’s Dire frogs and some relocated Blink wolves. There’s a few breeds of Unterlative crows as well.
Here, in this scraggly, tough little area, is where the Aasimar and Tieflings make a living. Most of the natives (the Aasimar and Tieflings here have been thus for so long they breed true, and are a race outright) make their living as herders or other jobs relating to the tending of sheep or ponies. The area produces the highest quality, warmest fabric of all the known countries, and the dyes used are considered the best for their shades (purple, green, and goldenrod, mainly). They aren’t the best farmers- most of the ones there are sustenance-only, and other than the woolly sheep and the meat they happen to be made out of, not much comes from the north. It’s considered a beautiful, if sparse land, and is a popular destination for tourists trying to ‘get away from it all’. There are only a few large towns in the region, with most people living in small villages or hamlets. The largest towns are to the southeast, near, obviously, the major trading roads.
The Aasimar and Tieflings take a lot from an idyllic view of Scotland and the more, well, desolate areas of Britain. Think tweed, arguing a lot, drinking lots of tea and/or whiskey, and oddly elaborate facial hair.