Create a new folder in your My Documents\Sim City 4\Regions and name it after the region you wish to download and install; e.g. " \Seattle".
Download the associated . jpeg file by clicking the icon provided. Save this in the new folder.
If there is a . bmp configuration file for your new region, download and save it to your new folder and rename it config.bmp.
Start Sim City 4.
On the Region Screen, click the Open Region icon. Select your new region folder. The screen will change to a large flat area - this is normal.
Hold Shift+Alt+Ctrl+R and navigate to the jpeg file you just saved. Select this and hit " okay"
Sim City 4 now converts this . jpeg file to a new region; it takes approximately 5 to 15 minutes depending on the size of the region and the speed of your computer.
You´re done! Don´t forget to add trees and wildlife to suit your preferences.
Footnotes: Default location for all Sim City Regions is in the My Documents\Sim City 4\Regions folder ( C:\Documents and Settings\UserName\My Documents\Sim City 4\Regions) Sim City 4 Regions are made up from multiple city zones, each zone represented by an individual file. The size and placement of these regions is controlled through a config.bmp
Sim City 4 can create new regions from grey scale jpeg files. It does so by converting the different shades into high and low regions.
Upload Yours: You can also Submit a Region to us. It must include a preview image, the terrain file in JPEG format and, if necessary, a Config.bmp. Use the online form to uplaod directly to our server and follow our guidelines for your submissions.