Nowhere near as bad as Mulgrave, but the problem in Mulgrave is low O2 not elevated H2S.
The adit was fairly dry when I went in - only the last twenty yards or so was flooded.
https://flic.kr/p/NPUtTn
The adit was fairly dry when I went in - only the last twenty yards or so was flooded.
https://flic.kr/p/NPUtTn