Started a New fort here, in a calm mountain on a magma tube and a tundra.
Youd think that would be easy right? Except it was a painful reminder about time management, logistics, and what is ans isnt magma safe.
You see, my worlds are designed to be chaotic and grim. High mineral count, high erosion, high evil and megabeasts, etc. Then I theme my forts, usually around a dying civ and a need to secure some resource or strategic locale. Finally, I add a few surprises of my own, such as raising the price of seeds, the time it takes for underground plants to grow and adding more hostile civs.
Anyway, like the badass I am, I embark with several peahens for egg harvesting, several dogs for protection and emergency food, and 2 anvils, some hematite, a charcoal, many copper nuggets, and some thread. Yup, gonna make it all on site - the picks, axes, crossbows, etc.
So I land - the place is a massive spike. Its a 20 Z-level trek up a steep slope to the top of the tube. I dont have a pick to dig nor an axe to cut with, mind you. I have my dwarves set up pastures and haul the foodstuffs to my planned fort entrance while I wait for the smiths to haul the anvils and ore up this rock.
Then, I embarked with granite, which houses several magma safe rocks, but itself isnt magma safe. Fort kaput.
I reembark, but forget to bring some starter copper bars to kickstart my digging. So I spend a month and a half watching my smiths haul the nuggets so I can piecemeal set up my miners.
Just imagine some peacocks and dwarves standing around a mountain side in the middle of a blizzard watching some smiths hauling copper rocks up to the top to smelt some ore. Instead of working on anything of merit. There isnt even food to collect out there!
So a good reintroduction to planning...... dont cheap on materials and supplies if you cant get the job done.