For information, the D'xtreme map is the imagination of the author, Mas Yoab Andre.
In this map, there are only 4 locations that you can explore.
As the name implies, this map does provide many extreme locations and is quite challenging to go through.
Here are the extreme map locations that you can explore.

1:Industrial Hill
2:City Closed
3:Skull Hill
4:Lost City

In some locations there are narrow streets with tracks that bend, climbs and descends steeply.

Map Contains:
Dangerous Roads
Hidden Roads
Extreme Roads
Forest Roads

Standalone Map
All Dlcs
Working on ETS2 1.30 to 1.40

use this profile if map not working

Map Credits: Yoab Andre,TEGUH GIYONO