Let's see, I have four right now.
In Icywaters they are trying to decide how best to penetrate a two-layer aquifer. They have both magma and arctic temperatures at their disposal, as well as the boring and inconvenient method of simply making staircases right next to the magma pipe. In the meantime, they are cozied up to the warmth of the magma pipe, eating plump helmets and drinking aquavit (I use reindeer moss). They have all three types of caravans, but not much to trade at the moment since they have very little rock available. These Dwarves were obviously shipwrecked, since my first view of them was of waves washing over their wagon. This was a regen-restart in order to get some custom plants growing properly (BIOME statement error).
In Bittersweetness they are trying to find some place to put another 1000 Dwarfbucks worth of road so that the King/Queen will please come and occupy these palatial quarters prepared for them. Overall, the fortress is working well. There is no magma, but they have lots of coal. There is sadly no flux either on the map or for sale. There is power from waterwheels on a brook running through the aboveground statue garden and turtle-pond area. They just got their first Elite Marksdwarf. They are trying to cultivate a herd of domesticated elephants, since their hunters kept getting trampled to death hunting wild ones.
In Hotcakes they are trying to decide how best to join the forging area to the rest of the complex. Hotcakes is a tropical volcanic island with a troglydyte cave complex and undead ocean life. They only have the Dwarven caravan, so supplies have to stretch. There is zero wind, and no stream. They will have to make a stream from the somewhat fragmented aquifer, which is unfortunately in the opposite direction from the magma relative to their entrance. This map has huge amounts of obsidian. One of their goals is to build a pyramid over the opening to the walled garden, above the delving. This was a regen-restart in order to get some custom plants growing properly (BIOME statement error).
I just restarted Riverwalls. It is on a map with a huge river and a very long waterfall. These Dwarves have just successfully arranged to have their Trade Depot accessable, without being killed by hippos or carp. I think they want to make the fortress, which will be built between the cliffs on either side of the huge river, in the shape of the head of a cat. I am not at all sure I have the artistic ability for this, but first they have to arrange to survive. In their previous incarnation, my inattention caused them to run out of booze, and in a fit of perversity, they all ran to the opposite side of the map from some perfectly safe ponds and threw themselves into a carp-filled river. There is no magma on the map, but I believe I saw some coal, and it is chock full of flux (chalk).