So I'm working on a story for Medieval Total War II as the Moors. One of the things I need to work on is an accurate geographic map of the area and an accurate historical map of where all the major cities and castles are. Now my biggest concern right now is getting the geography right. Unfortunately I ran into three problems:

1. I can't seem to find a good, high-res map of Spain's geography.
2. I'm looking for either vectors, brushes or techniques to create mountains, rives, and other gerosgrphic features.
3. I also want to have a good representation of the fertility of the land (Grassy, Barren, Rocky) and the illusion of elevation.

Here is what I have so far. Map of Spain v. 1.0: