Version 1=original
Version 2=slight changes
Version 3=increased starting iron to allow for time to build trains to the mountains
Version 4: Fixed all main ore bodies sorting priority. Turns out lower preserved (I thought higher did) - Made mistake on terrain height though so...
Version 5: Fixed some area of terrain from V4
Version 6: Changes to layout and amounts of starting resources
Version 7: Update 4 with a new trench barrier to the large ore bodies ideal for bridges
Some mid-game screen shots: