161 - Sam's rift at top of K(l?)ein Zimmer
Went with drill to push over the 1st pit (Sam did before, blind pit). Bolted down 2nd pit, clearing choss on the way. Approx 20m deep before choked. Adam bolted up to the last bolt before suggesting Jon continued. He did - it went about 10 feet! Went out - Tony frozen. Needs further push for 3rd pit!