So, at first glance the Badlands seem to cover an area roughly around half the size of the map, if not more
And the larger mountains will apparently work as the map limits, judging by their position.
I wonder... There is a Turri road southeast of Morro Bay in Los Osos valley, could the Fury Road anniversary serve dual purpose here, as a obvious reference to the nomads, but also a pun about Turri road that hints at the location of the depicted scene.
With topography similar to what we see here, though I haven't been able to find a fully corresponding location in either Los Osos valley nor Chorro valley. Though I have a few candidates.
However, due to the position of the Sun - to the right when viewing the pale shadow of Night City's skyline - and since the game's topography seems to match real world topography atleast roughly; One can with a degree of confidence state that the .gif is shot in the ingame version of Los Osos valley.
Furthermore the vista towards Night City is quite flat, dark and bluish, indicating water. This would correspond to the reservoir of the Santo Domingo Dam. Which you would overlook from the hills near Turri road.