76 - Rigging and radon detecting
Finally got to 76, Olly rigged down to The Ledge and I followed half an hour later to take a bag of rope through to BNW for the next trip and the radon detectors to place. The radon detectors were placed in the side lead in the test tubes roughly opposite the 99 connection. Surface surveyed 102 to 103. Tagged 1998-X01 and Ice Curtain.