Two questions:
1) How deep are deep metals? My shallow metals were weak but I haven't found the deep one(s) yet.
2) Caravans aren't leaving my depot. The only work-around I've found is to destroy the depot, at which point they leave. I can no longer trade with them and other caravans can't get in. My depot IS still accessible.
2: they take time to pack everything they have. If you traded a lot of loose crafts, it can take ages to get them packed. While they are packing, other caravans can still arrive and go to the same depot, and unpack, and you can trade with them. The only problem that occurs is when the packing one and arriving one both have wagons and the one that was packing leaves in a way to cause a wagon pile-up in your entrance
The LNP has a button to cycle through possibilities.
Question time! (again)
I embarked on a frozen ocean and dug through the ice to the white sand below. Since i'll need trees, I decided to dig a tree farm. Nothing special.
I broke into the caverns via a shaft disconnected from the actual fortress. But no moss or trees have started growing in the tree farm! Do "spores" die if they have to travel through cold (freezing even in summer) weather?
Is the inside too cold? How do I get trees?
Are there actually plants in the cavern? this is not always the case.
How, exactly, did a wild boar manage to survive a 10+ z-level drop into 7/7 water, then swim along and climb out and into my fortress.
And how do I stop it happening again, bearing in mind that the river freezes in winter and deconstructs anything build on top.
And I have no military. How do I deal with this thing?
Water cushions a fall I think, but in any case, falling has been changed so that a fall from 10 levels is not a death/terribly maimed sentence anymore. Many creature actually have swimming, much better than the average dwarf, so a boar swimming isn't a big surprise. After all, boars in the wild usually learn to swim a bit. I'm not sure what you want to accomplish to stop it, make something on top, close off the entrance to your fort... there are plenty of ways to make something that doesn't deconstruct when the river freezes, or to get a part of the river not to freeze at that point. Do floors deconstruct when built on top of ice, as long as they are still supported? Or did the ice actually still melt, I forgot. Can't you build the floor when it's not frozen?