Okay, I've got a couple of options for my good/evil/neutral volcano (no river) map.
Here's the paramaters
[WORLD_GEN]
[TITLE:Libashrash]
[DIM:17:17]
[SEED:3121879508]
[EMBARK_POINTS:1274]
[END_YEAR:5]
[BEAST_END_YEAR:30:80]
[REVEAL_ALL_HISTORY:1]
[CULL_HISTORICAL_FIGURES:1]
[ELEVATION:1:400:1600:1600]
[RAINFALL:100:100:0:0]
[TEMPERATURE:75:85:26:26]
[DRAINAGE:67:100:0:0]
[VOLCANISM:50:100:400:400]
[SAVAGERY:50:100:0:0]
[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:1]
[SEMIMEGABEAST_CAP:2]
[TITAN_NUMBER:1]
[TITAN_ATTACK_TRIGGER:80:0:100000]
[DEMON_NUMBER:20]
[NIGHT_CREATURE_NUMBER:20]
[GOOD_SQ_COUNTS:50:75:300]
[EVIL_SQ_COUNTS:50:75:300]
[PEAK_NUMBER_MIN:0]
[PARTIAL_OCEAN_EDGE_MIN:0]
[COMPLETE_OCEAN_EDGE_MIN:0]
[VOLCANO_MIN:15]
[REGION_COUNTS:SWAMP:0:0:0]
[REGION_COUNTS:DESERT:0:0:0]
[REGION_COUNTS:MOUNTAINS:0:0:0]
[REGION_COUNTS:OCEAN:0:0:0]
[REGION_COUNTS:GLACIER:0:0:0]
[REGION_COUNTS:TUNDRA:0:0:0]
[REGION_COUNTS:GRASSLAND:0:0:0]
[REGION_COUNTS:HILLS:0:0:0]
[REGION_COUNTS:FOREST:25:0:0]
[EROSION_CYCLE_COUNT:250]
[RIVER_MINS:0:0]
[PERIODICALLY_ERODE_EXTREMES:0]
[OROGRAPHIC_PRECIPITATION:1]
[SUBREGION_MAX:5000]
[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_1:5]
[LEVELS_ABOVE_LAYER_2:1]
[LEVELS_ABOVE_LAYER_3:1]
[LEVELS_ABOVE_LAYER_4:1]
[LEVELS_ABOVE_LAYER_5:2]
[LEVELS_AT_BOTTOM:1]
[CAVE_MIN_SIZE:5]
[CAVE_MAX_SIZE:25]
[MOUNTAIN_CAVE_MIN:1]
[NON_MOUNTAIN_CAVE_MIN:2]
[ALL_CAVES_VISIBLE:1]
[SHOW_EMBARK_TUNNEL:2]
[TOTAL_CIV_NUMBER:5]
[TOTAL_CIV_POPULATION:15000]
[SITE_CAP:18]
[PLAYABLE_CIVILIZATION_REQUIRED:1]
[ELEVATION_RANGES:50:72:36]
[RAIN_RANGES:0:0:0]
[DRAINAGE_RANGES:0:0:0]
[SAVAGERY_RANGES:0:0:0]
[VOLCANISM_RANGES:0:0:0]
seeds:
3121879508
This one's an 8x8, and it's the first I got. I've got a sliver of river in the bottom right but I'd probably shrink it down and cut that out.
Just testing out this world again, I realized I had another perfect embark spot in this world. It doesn't have a river, which is probably why I didn't notice it before.
Oh, and making it 6x6 and bringing it up to the river will deprive me of savage wilds, FYI.
3707846840
A 6x6, the next I found. Also without the river. This one's got high savagery every biome (I think), unlike the last one.
4048322280
And finally a 4x4. THIS ONE HAS A VOLCANO 3 TILES FROM THE SURFACE ON THE BOTTOM LEVEL! It's perfect for recreating boatmurdered!...I think. Not as much room, but meh.
Okay, so as you can probably tell, these world gen params are freakin' INSANE. No biomes but forests and mountains, short history to speed up generation, small size so I can see the whole thing in one frame, high volcanism so I don't get all the biomes and no volcano, high good and evil so I don't get the volcano and not the biomes... It's geared specifically towards generating my perfect embark, specified a few posts above. I could probably get rivers too, come to think of it...
But anyways, all these maps feature really nice flat cliffs and plateaus, next to tall mountain slopes. Certainly very epic, I think.