It's also teh hard and teh frustrating.
I found another site, this time with some steel-making materials, and started over with my armor factory.
And, of course, I had to have my indoor waterfall.
So: I had to raise water six levels up, from the brook at the other end of the map. I dug some channels between ponds, and made my patented multi-level waterwheel powered pump installations.
This took about a year on the game calendar.
Ten, during the winter, some of the pumps mysteriously self-destructed. Maybe they froze. There was no water in them, though, which was a bit odd.
So, come spring, I've finally got everything set up. I breach the last channels, letting the water run, the wheels spin, the pumps pump, the waterfall cascades, and there was much rejoicing.
Of course, I had forgotten to close my sewer access floodgate, which meant that the water ran right down my stairwell, into my foundry, down my magma smelters... and turned the magma below into basalt.
So: close the floodgate, demolish my smelters, dig out the basalt, rebuild them. Whew. By that time, one of my pumps had stopped because it couldn't pump out the water fast enough to keep the wheel turning. So I had to run a pipe down to my sewer entrance (which goes down to the Chasm.)
That made the water run too fast, so I had to enlarge my entry channels. Power up, and yay, we're off again. Waterfall!
Then I noticed that I had accidentally dug a tunnel right under my well. Which, of course, is fed by the waterfall.
Which meant that I flooded my mines.
At that very moment, a big honkin' party of migrants arrive, demanding more food, more beds, more rooms, more everything. AARGH!
Oh well, I plugged that hole, kinda. I'll fix it properly next winter when the brook freezes. If my pumps burst, I'm gonna have to try something else -- running the whole shebang underground.
This is fun. Frustrating and addictive, but fun. I think I need a bit of a break from it, though; I have a feeling that these damn dwarves are devouring my soul.