An odd quirk of my current fortress is that, every winter, it snows. On the western third of my fort only. I suspect biome-related fun.
I've got a brook outside my fort. Every winter, the eastern end of it freezes solid, while the western end keeps flowing. We're not sure exactly how that works, but water keeps flowing out of the ice. There is definitely a biome boundary where the freezing ends, you can also see it in the rock layers. I'm not sure if the rock distribution causes the temperature difference, or vice versa. There is also heavy forest on the western part, and no trees at all on the east. Maybe the type of rocks underground keeps the trees from growing in the eastern area, and the trees in the west help hold in heat. That might explain it. Yeah, that's the ticket!
So once I clear cut the forest, will the western half of the brook will start freezing?
I've got to clear cut the forest, because this is about the 7th fort in a row that hasn't had
any coal. I can find metals, but have to use charcoal for everything. It keeps my mason busy, since I can't afford to use wood for anything but beds, bins, and barrels (sounds like a name for a mall store). And making things from metal takes more wood than making them from wood. So if it can be made with stone, it gets made with stone. I buy every log every caravan brings in, plus dig out vast chambers out of the soil as underground tree farms, but still can't get enough wood. My current fort has only found tetrathedrite and galena, so I'm stuck with copper armor and weapons, and whatever goblinite I can scavenge. I'm hoping for goblins to come so I can get decent armor to defend myself from the goblins. Hmmm, that makes as much sense as having the downstream part of a brook flowing while the upstream part is frozen solid, doesn't it? That's Dwarven Logic for you!
I had a recent fort that had loads of iron ores (veins of hematite going through the clusters of magnetite) and flux, but I eventually just made iron weapons & armor because steel takes 3 times as much charcoal, and that was my limiting resource.
Keith