Agreed. No doubt over time further information in regard to this area will come to hand.
I went back to the Google map and did some close up exploring. As close as 100 feet. I looked in the grooves in several “canals” southwest of the Okavango delta. It appears there are compounds where the canal is being farmed, and then there is a fenced cluster of huts off to the side of the canal, not in the canal. Get the impression they must be finding better water for crops in the canal and don’t want to waste their parcel of cropland by putting their buildings there. Check it out. Night all.