I did that road/track twice a week for 3 months while doing boarder duty in the mid 70's. Rucacana, Swartbooisdrift, (Sodiliet mine - Company base), Euppa water falls, Ongonkwati, Opoho and back to Rucanna was the ration-run with a Unimog with sand bags as seats and it took 3 days to do per run...