Adam Cooper in 1993, placing a bolt for a more thorough descent of "Lost Rucksack Hole" on the plateau, after retrieving the eponymous Rucksack on a ladder descent. A rapid initial exploratory descent followed by bolting for a safer rig is a typical aspect of prospecting and shaft-bashing on the plateau. This shaft, given number 1623/200 remained unexplored below the surface shaft until 1998, when it was finally bottomed in three trips; marked with a metal tag; and very definitely fixed by GPS and surface survey. We won't be losing that one again, at least !
Photo © Andy Waddington, 1993