Things in canyonmartyrs are going well, the winding path from z -51 to the surface is done, and and Depot at the bottom of it is accessible, it overlooks the highest point of magma on the map, and is in front of the only remaining entrance to my fortress (All above-ground entrances, and the entrances from the higher caverns, have been walled off). Traders, invaders, and beasts from the surface have no choice but to descend the 51 levels to the lowest cavern.
There have been two forgotten beasts, one is still trapped in the 2nd cavern layer playing with troglodytes waiting for an entrance to open [not going to happen]. the other was a blob with wings and fire... of 10 marksdwarves only 2 survived, it only took 3 bolts to kill it, but it breathed fire and caught all but the two most experienced marksdwarves in the blaze. I hope to get some replacements before the next beastie or invader arrives, having a 2 dwarf military, and no traps, is not an ideal position right now. On the plus side, we have begun production of steel from the bituminour coal and hematite veins, and soon should have armour and weapons truly worthy of a dwarf military.
In the mean time, the stoneworkers are smoothing every inch of the fortress, and churning out marble blocks at record rates. Meanwhile, the smiths are making copper sarcophagi and nickel furniture.