40d:Stone management

Mine for long enough and you'll find yourself surrounded with various stones and ores. How do you get rid of them?

Techniques

Catapult

Build a catapult (or three), and assign a dwarf (or three) to keep firing stones into walls. The stones will shatter and be gone from your sight!

Stockpile

This is not a recommended method due to space requirements. Build a large stockpile for stone away from your fortress. Dwarves will carry stones out to the stockpile, and they will no longer clutter up your fortress. The stockpile needs to be placed somewhere without stones, because only 1 stone will be placed per tile, and will result in long hauling trips.

Dump

This is a preferred method due to the nature of its usefulness. However, it could easily be considered an exploit, and might not work in later versions. ^{v0.27.169.33a}

1. Make a zone of 1x1 or 1x2 tiles (preferably near your stone-needy workshops), and mark it as a garbage dump.
2. Press k and find a stone. Press d, and the stone will be marked for dumping.
3. A dwarf with refuse-hauling will come by, and take the stone to the garbage dump.

Advantages

No matter how many stones you mark for dumping, they will all be placed on the same tiny garbage tile! So basically, mark all the stones you want dumped and they will be dumped. You are now able to place all the stones and ores in the fortress on 1 tile!

Disadvantages

Every dumped stone will be marked as "Forbidden", and will not be used in stone-production. If you want to use the dumped stones, you must press 'k', find the pile of stones, and press f on every stone on the list (using +/- to navigate through the list).

Rock chute

You can dig a channel, and make a zone over it. Mark it as a garbage dump, and dwarves will dump stones down the channel. The stones will end up in the bottom tile. For dwarves to dump an item, you need to mark it for dumping, by pressing d while the k-cursor is over the stone.

Rock compactor

Similar to the rock chute, but build a drawbridge in the pit and a pressure plate at the entrance to the chute, linked to the bridge. Make sure you set the pressure plate to trigger on citizens. Alternately, just link it to a lever and pull it every once in a while. Mark the channel and empty tile as a dump zone. When a stone is dropped, the drawbridge will crush the stone, permanently destroying it.

Level 0:

=====
==.==
== ==
==^==

Level -1:

=====
=BBB=
=BBB=
==D==

. - Channel
= - Wall
^ - Pressure plate
B - Drawbridge - make sure to set to raise while constructing, as opposed to retract.
D - Door - keep locked to avoid accidently crushing dwarves 

Craftsdwarveship

Build a craftsworkshop or mason's workshop in a stone-filled area. Then add a lot of repeat jobs like making stone crafts, or doors (A fortress can never get enough doors). You can always trade away the crafts. A crafted stone counts towards the fortress value instead of being a worthless stone. The workshops will craft stones that are nearby, and soon the immediate area around the workshop will be cleared.

Building

The building interface might be slow, but constructing stone buildings aboveground is a great way to handle your stone problem. Not only do you use up the stone from your excavations, but you also create usable indoor space without having to mine any additional stone.

Minimizing clutter

The easiest way to avoid stone clutter is not to produce it in the first place. Use unskilled miners for initial fortress excavation to reduce the amount of useless stone they create, and don't dig out more than necessary. Produce lots of barrels and bins to cut down on your need for stockpile space.

Reasons for managing stone

Stockpiles

On some stockpiles, you will be unable to use the tiles that contain a stone. It will therefore be a good thing to clear up room for the things you want to stockpile.

Aesthetics

Personally I find the fortress more enjoyable to watch if it looks nice and uniform. Random stones lying about is, in my opinion, uglier to look at than a nice smooth clear floor.

Not Actually Necessary

You actually don't need to remove stones at all, except for the stockpile thing. Clearing out the fortress for stone is more of a personal priority rather than an essential need or requirement. However, people have had a tendency to ask about and discuss this specific subject, so here you are. A guide to stone management.