Instructions:
Click on each part to download the map (Modsbase)
When done, go to your download folder and unpack each file with WinRAR or 7zip
Copy or cut the unpacked *.scs files into your American Truck Simulator Mod folder.
Start the game, and for the best way is that you create a new profile with the Mario Map.
While creating a profile, activate first all parts, start with 1 at the bottom of the list to 7 on top.
Enjoy the huge combo map from Mario.

Part 1 Date 6-4-23
ATS_Base_01_1.47
Part 2 Date 19-3-23
ATS_Base_02_1.47
Part 3 Date 19-3-23
ATS_Base_03_1.47
Part 4 Date 19-3-23
ATS_Base_04_1.47
Part 5 Date 6-4-23
ATS_Map_Basic_1.47
Part 6 Date 18-3-23
ATS_Map_North_America_1.47
Part 7 Date 19-3-23
ATS_Map_South_America_1.47