Land Usability
What settings during random map creation determines how frequent you'll run into land you can settle on? Much like in Gal Civ 2, I find that having lots of land to create new settlements on just creates a lot of tedium, in that you have to micromanage to many cities. However, at the same time, I've also had maps that have next to no usable land for creating cities.
I looked in the online manual but didn't find anything that answers my question.