Warren - don't have a lot to add, this was a long time ago. We saw the cliffs from a distance (possibly even from Monteseel), and went driving in the valley following our noses until we couldn't drive any further. Dirt roads ended at a kraal, and the locals were friendly, we asked permission to leave my car at the kraal, and walked in for about an hour. In the panorama shot you can see the dirt road we ended on, and we walked up the obvious grassy ridgeline to the base of the cliffs. Climbing was easy at that point, 1 pitch of grade 10-11 type stuff. Found an old (in 1987) piton there, so we weren't pioneers. The top was a lovely rolling grassy meadow, complete with cows (!?! there must be an easy access on the other side of the huge mesa) but no people. There was a little stream on top with good water, and we camped by a tiny rock overhang with a clear soak for water.
We went to explore, looking for a giant crackline that we'd seen on the approach - the top is hidden in a wooded ravine, you can see the only trees on the top in the panorama, about 1/4 of the way from the left. The "crack" turned out to be an enormous chimney system going back into the cliffline at least 100m. We rapped one pitch down into it, and climbed out - were too chicken to go the whole way down as the bottom looked hard without torches, more caving than climbing.
The line that we chose was awesome, 2 pitches of somewhat chossy corner and face leading to a 3rd & final overhanging headwall on brilliant rock, split by a fist-crack. We rapped another line (2x 45m raps) where I nearly died when the block we were rapping off swiveled as I was going over the edge. I was committed, so did a very very gentle rap to the bottom, praying the rock wouldn't come down with me. I led the two initial pitches to the base of the overhanging crack, quite easy, maybe 13-14. The crack was much harder, I gave it a good go, but had a very basic rack of hexes & nuts, and the crack was filled with bird & bat-poo, it was hideous. I eventually got spat off, and we escaped up an easier corner nearby, determined to clean the line on rap & give it another go. You can see my partner Steve rapping off in one of the pics - can you see the mistake we made? The line was much steeper than we'd thought, and Steve lost touch with the rock very quickly, and was unable to swing in. He rapped down, hoping to end on the ledge - but ended up 10m off the rock at the end of the rope, dangling at least 60m above the forest below. We both got quite scared as we really didn't have a clue what we were doing, or how to get out of that mess.
Luckily I'd read about prussiking in a book (!) and sort of remembered how to tie a prussik knot with a sling - so lowered a couple of slings to Steve, taught him how to tie them, and he eventually managed to ascend the rope - took over an hour and he was very sunburned and totally wasted by the time he got up. We called it quits at that point before we killed ourselves.
I have a vague memory of Evan Wiercx planning to go and do it some time later, but I'm not sure it was ever done. I'd love to hear from anyone of any history of climbing here, and especially, what access there is now / whether it is reasonably safe to try to go out there now - I'd love to get out there in January.