Date of Dive: 3.28.89 Location: Nacimiento Del Rio Mante in the Sierra de Cucharas mountains, Mexico Depth: 867 ffw/265 mfw Bottom Time: 24 minutes Run Time: 13 hours 52 min Bottom mix: Trimix 7/69 (7% oxygen, 69% helium, 24% nitrogen) Table: Hamilton/Exley Water Temp: 26ºC/78ºF