So... 3x3 embark, Haunted plains, no source of running water at the surface. "Damn, this thing is taking a long time to embark." Finally, I see my dwarves around their wagon, but I can't actually do anything. Several seconds later, the game zooms to z-level -60-something, and informs me that a section of the cavern has collapsed. "Oh, that can't be good." I check my status screen, and there's fortunately no tell-tale signs of a "clown-college."
I'm left wondering why the game is so unresponsive, but then I notice something...
And it goes up...
..quite a ways. Do note: This is not the highest point of the map. I simply got tired of going up.
You'll find it here:
I'm going to cause this column to collapse, and post the results.
UPDATE:
By popular demand, here's the seed. I run 64-bit Slackware Linux on an AMD Phenom II, so I don't know if this will work properly for everyone (it didn't for the last time I tried posting a seed here, but that was from the 40d days).
Created in DF v0.31.10.
[WORLD_GEN]
[TITLE:CUSTOMSETTHREE]
[SEED:137731720]
[HISTORY_SEED:2503475728]
[NAME_SEED:683521368]
[CREATURE_SEED:3198092136]
[DIM:129:129]
[EMBARK_POINTS:1274]
[END_YEAR:1050]
[BEAST_END_YEAR:200:70]
[REVEAL_ALL_HISTORY:1]
[CULL_HISTORICAL_FIGURES:0]
[ELEVATION:5:400:401:401]
[RAINFALL:0:100:200:200]
[TEMPERATURE:20:70:200:200]
[DRAINAGE:0:100:200:200]
[VOLCANISM:20:100:200:200]
[SAVAGERY:20:100:200:200]
[ELEVATION_FREQUENCY:1:1:1:1:1:1]
[RAIN_FREQUENCY:1:1:1:1:1:1]
[DRAINAGE_FREQUENCY:1:1:1:1:1:1]
[TEMPERATURE_FREQUENCY:1:1:1:1:1:1]
[SAVAGERY_FREQUENCY:1:1:1:1:1:1]
[VOLCANISM_FREQUENCY:1:1:1:1:1:1]
[TITAN_NUMBER:21]
[TITAN_ATTACK_TRIGGER:80:0:100000]
[DEMON_NUMBER:28]
[GOOD_SQ_COUNTS:25:251:503]
[EVIL_SQ_COUNTS:50:500:1000]
[PEAK_NUMBER_MIN:40]
[PARTIAL_OCEAN_EDGE_MIN:1]
[COMPLETE_OCEAN_EDGE_MIN:0]
[VOLCANO_MIN:25]
[REGION_COUNTS:SWAMP:260:1:1]
[REGION_COUNTS:DESERT:260:1:1]
[REGION_COUNTS:FOREST:1040:3:3]
[REGION_COUNTS:MOUNTAINS:2080:2:2]
[REGION_COUNTS:OCEAN:2080:1:1]
[REGION_COUNTS:GLACIER:0:0:0]
[REGION_COUNTS:TUNDRA:0:0:0]
[REGION_COUNTS:GRASSLAND:2080:3:3]
[REGION_COUNTS:HILLS:2080:3:3]
[EROSION_CYCLE_COUNT:250]
[RIVER_MINS:100:100]
[PERIODICALLY_ERODE_EXTREMES:1]
[OROGRAPHIC_PRECIPITATION:1]
[SUBREGION_MAX:2750]
[CAVERN_LAYER_COUNT:3]
[CAVERN_LAYER_OPENNESS_MIN:45]
[CAVERN_LAYER_OPENNESS_MAX:100]
[CAVERN_LAYER_PASSAGE_DENSITY_MIN:0]
[CAVERN_LAYER_PASSAGE_DENSITY_MAX:50]
[CAVERN_LAYER_WATER_MIN:0]
[CAVERN_LAYER_WATER_MAX:50]
[HAVE_BOTTOM_LAYER_1:1]
[HAVE_BOTTOM_LAYER_2:1]
[LEVELS_ABOVE_GROUND:15]
[LEVELS_ABOVE_LAYER_1:8]
[LEVELS_ABOVE_LAYER_2:1]
[LEVELS_ABOVE_LAYER_3:1]
[LEVELS_ABOVE_LAYER_4:6]
[LEVELS_ABOVE_LAYER_5:5]
[LEVELS_AT_BOTTOM:5]
[CAVE_MIN_SIZE:10]
[CAVE_MIN_SIZE:10]
[CAVE_MAX_SIZE:50]
[MOUNTAIN_CAVE_MIN:25]
[NON_MOUNTAIN_CAVE_MIN:50]
[ALL_CAVES_VISIBLE:0]
[SHOW_EMBARK_TUNNEL:2]
[TOTAL_CIV_NUMBER:20]
[TOTAL_CIV_POPULATION:20000]
[PLAYABLE_CIVILIZATION_REQUIRED:1]
[ELEVATION_RANGES:2080:4160:2080]
[RAIN_RANGES:2080:4160:2080]
[DRAINAGE_RANGES:2080:4160:2080]
[SAVAGERY_RANGES:2080:4160:2080]
[VOLCANISM_RANGES:2080:4160:2080]
UPDATE AGAIN:
You can download my save-game here:
Adamantine Spire