That can be duplicated in a 10x10, just fewer islands and cap the central mountains to 12-15k. As for the ditches, they can be 10k deep if that floats your goat. The default Euro tile set has two kinds of sand and grassland with bushes. Rock tile sets will add their own sparse spaced trees depending on the slope angle. Do you remember if the land gently ran down to the shores or suddenly shouldered over and down from say 1-2k?
This thing is simple, plop down ground in a big dot set to 2k. Cut the water canals and cut out the canyon trenches. Push up the central highlands to 17k, there is a bulldozer tool in the TE. You can hand sculpt the drop to the shoreline or use a 90day preview of L3DT. After that, plop down your field objects and spawns, and avoid beating your cats after testing every single spawn on the map......
Easyscor is the person to talk to about strat and the finer points of bringing this all together.
