Further around the same depression as site 653. A strongly draughting hole. Marked 654 on orange tape. Remarked with yellow tag. A 3m sloping passage to a 16m pitch which is choked at the bottom.
References: anon., 1987 (logbook); anon., 1988 (logbook); anon., 1989 (logbook); Neill A et al, 1989
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