Logbook entry: Warren east passage datalogger removal (2012-12-04) at Warren Cave
About happenings on Dec. 4, 2012, Aaron Curtis wrote:
Underground by 2pm. Showed Toby V2, VHub [hard to read-- implies "hubert's vent" I think]. Got to easternmost passage. Pulled out Hobo 2426039. Channel 1 about 40cm into hexagonal hoarfrost, ch2 in vent.