Logbook entry: New Year's trip to Mammoth - Cathedral system (2009-12-31) at
About happenings on Dec. 31, 2009, Aaron Curtis wrote:
To wrap up the field season, Bill and Nelia led a fun trip to the stunning and now connected Mammoth - Cathedral cave system. Cameras were constantly going off as Clive and Nial tried to capture the cave. New Years' itself was held in the high terminal room, where there are enormous A-axis crystals -- hexagonal plates about 0.5m wide.