Sorry for the necro, but i don't really think my little discovery needs a new topic.
I've stumbled upon a situation really similar to the one in the original topic, only for the current version.
The place is not as pretty, but it has an upright spoiler to boot in the lower corner of the designed area in the image. Here are the world gen parameters:
Created in DF v0.31.25.
[WORLD_GEN]
[TITLE:MEDIUM REGION]
[SEED:1701399616]
[HISTORY_SEED:3028267392]
[NAME_SEED:3458823104]
[CREATURE_SEED:506783232]
[DIM:129:129]
[EMBARK_POINTS:1274]
[END_YEAR:51]
[BEAST_END_YEAR:200:80]
[REVEAL_ALL_HISTORY:1]
[CULL_HISTORICAL_FIGURES:0]
[ELEVATION:1:400:401:401]
[RAINFALL:0:100:200:200]
[TEMPERATURE:25:75:200:200]
[DRAINAGE:0:100:200:200]
[VOLCANISM:0:100:200:200]
[SAVAGERY:0:100:200:200]
[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]
[MINERAL_SCARCITY:2500]
[MEGABEAST_CAP:18]
[SEMIMEGABEAST_CAP:37]
[TITAN_NUMBER:12]
[TITAN_ATTACK_TRIGGER:80:0:100000]
[DEMON_NUMBER:28]
[NIGHT_CREATURE_NUMBER:28]
[GOOD_SQ_COUNTS:25:251:503]
[EVIL_SQ_COUNTS:25:251:503]
[PEAK_NUMBER_MIN:12]
[PARTIAL_OCEAN_EDGE_MIN:1]
[COMPLETE_OCEAN_EDGE_MIN:0]
[VOLCANO_MIN:3]
[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:0]
[CAVERN_LAYER_OPENNESS_MAX:100]
[CAVERN_LAYER_PASSAGE_DENSITY_MIN:0]
[CAVERN_LAYER_PASSAGE_DENSITY_MAX:100]
[CAVERN_LAYER_WATER_MIN:0]
[CAVERN_LAYER_WATER_MAX:100]
[HAVE_BOTTOM_LAYER_1:1]
[HAVE_BOTTOM_LAYER_2:1]
[LEVELS_ABOVE_GROUND:15]
[LEVELS_ABOVE_LAYER_1:10]
[LEVELS_ABOVE_LAYER_2:1]
[LEVELS_ABOVE_LAYER_3:1]
[LEVELS_ABOVE_LAYER_4:5]
[LEVELS_ABOVE_LAYER_5:2]
[LEVELS_AT_BOTTOM:1]
[CAVE_MIN_SIZE:5]
[CAVE_MAX_SIZE:25]
[MOUNTAIN_CAVE_MIN:25]
[NON_MOUNTAIN_CAVE_MIN:50]
[ALL_CAVES_VISIBLE:1]
[SHOW_EMBARK_TUNNEL:2]
[TOTAL_CIV_NUMBER:40]
[TOTAL_CIV_POPULATION:15000]
[SITE_CAP:1040]
[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]
DFprospector info:
Base materials:
SOIL : 27555
STONE : 6931218
FEATSTONE : 95755
OBSIDIAN : 2481
VEIN : 484690
ICE : 172455
MAGMA : 499665
Layer materials:
GABBRO : 2900525
DIORITE : 1339403
GRANITE : 1067062
GNEISS : 476111
MARBLE : 449254
QUARTZITE : 334741
SANDSTONE : 271682
SLADE : 72527
SCHIST : 24927
DOLOMITE : 22776
SHALE : 17678
SLATE : 16363
PHYLLITE : 10696
CLAY_LOAM : 6776
SILTY_CLAY : 3661
SILT : 3620
SAND_RED : 3398
SANDY_CLAY_LOAM : 3363
SILTY_CLAY_LOAM : 3353
SANDY_CLAY : 3334
SAND_TAN : 50
>>> TOTAL = 7031300
Vein materials:
ORTHOCLASE : 252243
LIGNITE : 37341
SPINEL_PURPLE : 23396
PERIDOT : 19231
ILMENITE : 18584
CASSITERITE : 16965
HORNBLENDE : 12114
GALENA : 9428
SCHORL : 9163
FIRE OPAL : 8252
RUBICELLE : 7451
QUARTZ_ROSE : 6615
RAW_ADAMANTINE : 6567
TOPAZ : 6381
PIPE OPAL : 6312
MICA : 6114
MICROCLINE : 4234
CLEAR TOURMALINE : 4043
PRASE : 3918
CLEAR GARNET : 3240
WOOD OPAL : 3229
BLACK ZIRCON : 3133
WAX OPAL : 2924
RED PYROPE : 2705
ALMANDINE : 2580
TETRAHEDRITE : 2533
MORION : 2317
GREEN ZIRCON : 2084
SMOKY QUARTZ : 957
COBALTITE : 945
GOSHENITE : 867
LIMONITE : 817
VIOLET SPESSARTINE : 583
CRYSTAL_ROCK : 494
RED ZIRCON : 389
CITRINE : 384
PINEAPPLE OPAL : 363
BISMUTHINITE : 325
GOLDEN BERYL : 302
CHRYSOBERYL : 204
YELLOW SPESSARTINE : 173
OPAL_LEVIN : 161
OPAL_PFIRE : 158
AMBER OPAL : 157
YELLOW ZIRCON : 114
NATIVE_GOLD : 114
BROWN ZIRCON : 105
WHITE CHALCEDONY : 94
EMERALD : 93
INDIGO TOURMALINE : 84
AMETHYST : 75
RUTILE : 67
BLUE GARNET : 66
BROWN JASPER : 62
HONEY YELLOW BERYL : 7
>>> TOTAL = 491257
Shrubs:
BUSH_QUARRY : 259
MUSHROOM_HELMET_PLUMP : 251
POD_SWEET : 248
MUSHROOM_CUP_DIMPLE : 226
VINE_WHIP : 56
BERRIES_PRICKLE : 54
GRASS_LONGLAND : 34
BERRIES_STRAW_WILD : 25
ROOT_HIDE : 25
WEED_BLADE : 14
GRASS_TAIL_PIG : 11
WEED_RAT : 7
BERRIES_FISHER : 2
>>> TOTAL = 1212
Wood in trees:
BLOOD_THORN : 1060
GOBLIN_CAP : 217
BLACK_CAP : 214
FUNGIWOOD : 214
TOWER_CAP : 200
TUNNEL_TUBE : 192
HIGHWOOD : 30
CHESTNUT : 29
MAPLE : 28
OAK : 26
ALDER : 26
BIRCH : 26
ASH : 26
SPORE_TREE : 10
WILLOW : 7
>>> TOTAL = 2305