I called it OB side entry as the matter of speaking as that is what it kind of is. I doubt it has any official name.
If you want to make a mark in the history, this area gives you some opportunities to name routes / passes. For example 'Penge pass' was I believe named by Jacques 'Livingstone' Sidetrack. 
Here is another unnamed pass which I just named "Sidetrack Pass" in LP worth checking out, not nearly as technical or long but nice views.
Come on Jacques - don't get greedy. That one is fully tractable on googlemaps, I have ridden it a year ago when I was just following Minxy's tracks (
@Minxy ). So if anything it should be called Minxy pass. BTW it is an easy dirt road, but very scenic so if you ar gunning it back to GP from Lekgalameetse, highly recommended.
And BTW, that whole mountain range I just called on FB ' Little Kaokoland' (yes way too unironic, but fitting IMO). I have been exploring there on Sunday before I got chased away by rain, and it is goldmine to be discovered. I will post pictures this week in my thread (I already posted on earlier in this one as a teaser).