This map is unembarked worldgen .31.16 stopped at end-year 50, with maxed out numbers for titans, megabeasts and semimegabeast numbers, all races are alive and neighbor the said embark area and 8192 volcanos, 800 rivers start and 400 rivers to world finish. It has at least one 4x4 embark site with a terrifying volcano area and joyous major river in it, also tropical area with lots of wood. Elephants and alligators confirmed on test embark with feather trees.

The said Terrifying and Joyous embark can be found from the lowest left "World location" screen at coordinates 5 to the right and 3 to the up. at a double side by side volcano lieing on a major river, double blue line, happening to be on a border of Terrifying, Untamed Wilds and Joyous Wilds area. The embark could be made into 2x4 embark, still retaining both areas, the river and the volcano.

This is a rather specific world and area that I had been looking for a long time so I thought I'd share.